House of Holstein-Gottorp
Parent house	House of Oldenburg
Country	Russian Empire Kingdom of Denmark Kingdom of Sweden Kingdom of Norway Grand Duchy of Oldenburg Duchy of Oldenburg Duchy of Schleswig Duchy of Holstein
Etymology	FromHolstein region andGottorf Castle,Schleswig
Founded	1544; 481 years ago (1544)
Founder	Adolf of Denmark
Current head	Christian, Duke of Oldenburg
Final ruler	Schleswig-Holstein:Paul I Russia:Nicholas II Oldenburg:Frederick Augustus II
Titles	List Emperor of Russia (1762–1917) King of Sweden (1751–1818) King of Norway (1814–1818) Grand Duke of Oldenburg (1823–1918) Duke of Oldenburg (1774–1823) Duke of Schleswig (1544–1773) Duke of Holstein (1544–1773)
Estates	Gottorf Castle (former, Schleswig-Holstein) Schloss Oldenburg (former, Oldenburg) Winter Palace (former, Russia)
Deposition	Schleswig-Holstein: 1773 (1773) Russian Empire: 1917 (1917) Oldenburg: 1918 (1918)
Cadet branches	Holstein-Gottorp (Swedish line) (extinct) Holstein-Gottorp-Romanov (agnatic)

Duchy of Schleswig-Holstein-Gottorp Herzogtum Schleswig-Holstein-Gottorf (German) Hertugdømmet Slesvig-Holsten-Gottorp (Danish)
1544–1773
Merchant Ensign of Holstein-Gottorp Coat of arms
Status	Duchy (originally as anAppanage)
Capital	Schleswig
Ethnic groups	Germans,Danes
Government
• Duke	Adolf I (First)
• Duke	Paul I (last)
Establishment	1544
History
• Second partitioning of Schleswig-Holstein	1544
• Treaty of Frederiksborg	1720
• Treaty of Tsarskoye Selo	1773
• Established	1544
• Disestablished	1773
Today part of	Germany Denmark

Holstein-Gottorp (pronounced[ˈhɔlʃtaɪnˈɡɔtɔʁp]) is thehistoriographical name, as well as contemporary shorthand name, for the parts of the duchies ofSchleswig andHolstein, also known asDucal Holstein, that were ruled by the dukes ofSchleswig-Holstein-Gottorp, a side branch of the GermanHouse of Oldenburg. Other parts of the duchies were ruled by the kings of Denmark.

The territories of Gottorp are located in present-dayDenmark andGermany. The main seat of the dukes wasGottorf Castle in the city ofSchleswig in the duchy of Schleswig. It is also the name of the ducal house, which ascended to several thrones. For this reason, genealogists and historians sometimes use the name of Holstein-Gottorp for related dynasties of other countries.

The formal title adopted by these rulers was "Duke of Schleswig, Holstein,Dithmarschen andStormarn", but that title was also used by his kinsmen, the kings of Denmark and theircadet branches, as it was the common property of all theseagnates. The Gottorp branch heldLandeshoheit (territorial superiority) over the duchy of Holstein in theHoly Roman Empire and over the duchy of Schleswig in thekingdom of Denmark.^{[citation needed]} For the sake of convenience, the name Holstein-Gottorp is used instead of the technically more correct "Duke of Schleswig and Holstein in/at Gottorp".^{[citation needed]}

The oldest of the ducal titles was that of Schleswig, which had been confirmed infief to a royal kinsman by the regentQueen Margaret I of Denmark, Sweden and Norway in 1386 on behalf of her son,Olaf II of Denmark. The kings of Denmark were granted Holstein as an imperial fief by theHoly Roman Emperor Frederick III in 1474.

In 1544, the so-called "one-third duchy" was ceded toAdolf, third son of KingFrederick I of Denmark and the youngest half-brother of KingChristian III of Denmark. Thus, the surviving House of Holstein-Gottorp is a cadet branch of theHouse of Oldenburg. The Dukes of Holstein-Gottorp shared the uneasy rule of Schleswig and Holstein with the Kings of Denmark. As such, they were often allies (practically clients) of the Swedes, enemies of the Danes. This longtime alliance was sealed by several dynastic marriages:Christina of Holstein-Gottorp marriedCharles IX of Sweden,Hedwig Eleonora of Holstein-Gottorp marriedCharles X Gustavus,Duke Frederick IV married the eldest daughter of KingCharles XI of Sweden, and ultimately PrinceAdolf Frederick of Holstein-Gottorp ascended to the Swedish throne in 1751, founding the Holstein-Gottorp dynasty of Sweden (ruled 1751–1818).

By theTreaty of Roskilde (1658) and theTreaty of Copenhagen (1660),Denmark-Norway released Gottorp from its feudal bonds and recognized the sovereignty of its dukes over the Gottorp portions of the duchy of Schleswig. In fact, these Schleswigers had been relatively independent already for more than a century. Although the duchy of Holstein remained officially a fief of the Empire, in fact by treaty its dukes co-governed both duchies with their formal overlord, the Danish king.

In theGreat Northern War, the duchy sided withSweden and was defeated after Danish troops occupied the northern portions of Holstein-Gottorp. According to the 1720Treaty of Frederiksborg, Swedish support for Gottorp ceased, making it impossible for the dukes to regain their lost territories in Schleswig and prolonging their feud with the king of Denmark. Following the peace settlement of 1721,Duke Charles Frederick fled to the court ofPeter the Great ofRussia, and for some time, the Russians plotted to restore Charles Frederick to his lands in Schleswig. Charles Frederick himself was married toGrand Duchess Anna, Peter's daughter. Peter II and his successors abandoned the policy of Peter the Great of backing the claims of the dukes of Holstein-Gottorp on their part of Schleswig. In fact, to gain a port on the coast of the Northern sea, Russia needed not Schleswig but the friendship of dukes. But from this marriage was bornCharles Peter Ulrich, who succeeded to Holstein-Gottorp in 1739, and became an heir to the Russian throne according to the will ofCatherine I and especially upon the accession of his childless auntElizabeth in 1741.

Charles Peter Ulrich, who acceded to the Russian throne as Peter III in 1762, was determined to reclaim his part of Schleswig fromDenmark–Norway and to attach it to Holstein. When he became emperor in 1762, he immediately signed a generous peace withPrussia and withdrewRussia from theSeven Years' War in order to concentrate fully on an attack upon Denmark together with Prussia. This move was unpopular in Russia, since it was considered a betrayal of Russia's sacrifices in the war, as well as placing national interests in jeopardy. At the same time, the Danish army had hastily moved across the border intoMecklenburg, to deter an invasion of Holstein, and prepared for battle. The Russian army had advanced to less than 30 km from the Danes when it learned that Peter III had been overthrown by his wife, who acceded to the throne as EmpressCatherine II. One of her first actions was to call off the war against Denmark, surrender territorial claims, and restore normal relations.

Peter III's son,Paul, the new Duke of Holstein-Gottorp, was a minor under the regency of his mother, the empress. With the 1773Treaty of Tsarskoye Selo, she agreed to cede the territorial claims of her son to the Holstein-Gottorp lands still held by Denmark and to cede the part of Duchy, held by her husband, obtaining in exchange the German countships ofOldenburg andDelmenhorst, elevated in 1776 into the duchy of Oldenburg within the Holy Roman Empire. The duchy was given to the cousin of Paul's grandfather—the agedPrince-Bishop of Lübeck,Frederick August, head of a younger branch of the Holstein-Gottorp family. This put an end to theGottorp question, which had generated so many conflicts between the Nordic powers.

The House of Holstein-Gottorp acceded to several European thrones. The dynastic policy of the dukes of Holstein-Gottorp resulted in its cadet branch, the Swedish line, rulingSweden from 1751 until 1818 andNorway from 1814 to 1818. In 1863, the relatedHouse of Schleswig-Holstein-Sonderburg-Glücksburg — descended from King Christian III of Denmark — becameKings of Denmark andGreece and, in 1905, ofNorway.

The Lübeck branch became firstdukes and later grand dukes of Oldenburg from (1773 until 1918), while thesenior branch ruledRussia briefly in 1762 and then again from 1796 until 1917 (while in 1762–1796 it was ruled by theirwidow, second cousin and mother). However although agnatic members of this house reigned in Russia, they were commonly called Romanov, or more rarely, Holstein-Gottorp-Romanov.

Dukes of Schleswig and Holstein at Gottorp:

• 1544–1586:Adolf
• 1586–1587:Frederick II
• 1587–1590:Philip
• 1590–1616:John Adolf
• 1616–1659:Frederick III
• 1659–1694:Christian Albert
• 1694–1702:Frederick IV
• 1702–1720:Charles Frederick

Dukes of Holstein-Gottorp at Kiel:

• 1720–1739:Charles Frederick
• 1739–1762:Karl Peter Ulrich (later Peter III ofRussia)
• 1762–1773:Paul (Emperor 1796–1801) 1773 exchanged claim for Duchy of Oldenburg

Titular Dukes of Holstein-Gottorp at St Petersburg (House of Holstein-Gottorp-Romanov):

• 1773–1801:Paul (Emperor 1796–1801)
• 1801–1825:Alexander I of Russia
• 1825–1831:Grand Duke Constantine Pavlovich of Russia
• 1831–1856:Nicholas I of Russia
• 1856–1881:Alexander II of Russia
• 1881–1894:Alexander III of Russia
• 1894–1918:Nicholas II of Russia
• 1918–1918:Alexei Nikolaevich, Tsarevich of Russia (At the murder of the Emperor and his family it is understood that the Emperor was the first to die. Therefore, Tsarevitch Alexei briefly became titular Duke)^{[citation needed]}
• 1918–1938:Cyril Vladimirovich, Grand Duke of Russia (After the murder of the Emperor and the Tsarevitch in 1918, the title passed to the surviving senior male branch of the Romanov family)
• 1938–1992:Vladimir Kirillovich, Grand Duke of Russia (Grand Duke Vladimir died with only female issue, and so the title should pass to the senior male member of the House of Romanov-Holstein-Gottorp. To whom is a contested issue)

One view^[2] is that the heir is the non-dynastic son ofGrand Duke Dimitri, only son ofGrand Duke Paul, himself the youngest brother of Alexander III. This heir is non-dynastic in the Russian sense, but the Danish branch of theHouse of Oldenburg had no declared ban against unequal marriages (but against non authorized marriages in Denmark), asSchleswig, where the (once sovereign) Schloss Gottorf is located, was never part of Holy Roman Empire or under its jurisdiction. These heirs live in USA and have not staked a public claim to titles.

• 1992–2004:Prince Paul Dimitrievich Romanovsky-Ilyinsky
• 2004–present:Prince Dimitri Pavlovich Romanovsky-Ilyinsky (born 1954)

Prince Dimitri Pavlovich Romanovsky-Ilyinsky has no sons. His only male heir, his brother Prince Michael Romanovsky-Ilyinsky, is also without male issue, and there are currently no further male heirs in the Romanovsky-Ilyinsky line to inherit this theoretical claim to the Duchy. This claim would then pass on through the line ofGrand Duke Alexander Mikhailovich of Russia toAndrew Andreevich, Prince of Russia and his descendants.

Another view determines that Nicholas II's August 11, 1903 renunciation of claims to the Oldenburg titles and duchy for himself and for all his family and descendants^[3] made it impossible for any of the Romanov heirs to bear the dynastically valid Schleswig Holstein titles independently.

A third view is that by the end of the Holy Roman Empire it was a principle of German princely law that members of all princely families which heldReichsstand status therein were required to contractebenbürtig in order to transmitdynastic rights to their descendants.^[4] If descendants of Grand Duke Dmitri's marriage with Audrey Emery are considered ineligible to succeed to the ducal Holstein claim, it is unclear which, if any, of the various male-line branches descended from the Imperial Romanovs remain eligible. If marriages-in-exile with Russian princesses or countesses meet the marital standard, male-line heirs may yet exist. If, however, all marriages deemed morganatic by Russian Imperial standards were also non-dynastic for the Gottorp succession, the genealogically senior Holstein-Gottorp dynast would beChristian, Duke of Oldenburg, current head of the branch descending fromChristian August of Holstein-Gottorp, Prince of Eutin, the younger brother of Duke Frederick IV. He already holds claim to the defunct title of grand duke ofOldenburg. Either way, the king of Denmark exercised sovereignty in the duchies and provided financial support to the cadet Schleswig-Holstein branches of the House of Oldenburg. The claim to Holstein inherited by Emperor Paul I from Peter III was exchanged in 1773 for the Danish kings' duchy of Oldenburg (residual succession rights being retained), the rulers of which lost sovereignty there in 1918. KingChristian IX of Denmark lost Schleswig and Holstein in theSecond Schleswig War in 1864, subsequent to which both duchieswere incorporated into the kingdom of Prussia and later theGerman Empire. Danish monarchs continued to use their traditional ducal titles in pretence until the death of kingFrederik IX of Denmark in 1972. In 1920,Northern Schleswig was returned to Danish rule after aplebiscite, the remainder of the former duchiesremains part of Germany.

House of Schleswig-Holstein-Gottorp

House of Oldenburg Elimar I Count of Oldenburg r. 1091-1108 c. 1040-1112 Elimar II Count of Oldenburg r. 1108-1142 Christian I the Quarrelsome Count of Oldenburg r. 1143-1167 ?-1167 Maurice Count of Oldenburg r. 1169-1211 c. 1145-c. 1211 Christian II Count of Oldenburg r. 1209-1233 ?-1233 John I Count of Oldenburg r. 1233-1270 c. 1204-c. 1270 Christian III Count of Oldenburg r. 1270-1285 ?-1285 John II Count of Oldenburg r. 1285-1301 ?-c. 1314/6 Conrad I Count of Oldenburg r. 1324-1347 ?-1347 Christian V Count of Oldenburg r. 1368-1398 c. 1342-c. 1399 Dietrich Fortunatus Count of Oldenburg r. 1403-1440 1398-1440 Christian I King of Denmark r. 1448-1481 King of Norway r. 1450-1481 King of Sweden r. 1457-1464 1426-1481 Frederick I King of Denmark r. 1523-1533 King of Norway r. 1524-1533 1471-1533 House of Schleswig- Holstein-Gottorp Adolf Duke of Schleswig- Holstein-Gottorp r. 1544-1586 1526-1586 Frederick II Duke of Schleswig- Holstein-Gottorp r. 1586-1587 1568-1587 Philip Duke of Schleswig- Holstein-Gottorp r. 1587-1590 1570-1590 John Adolf Duke of Schleswig- Holstein-Gottorp r. 1590-1616 1575-1616 Frederick III Duke of Schleswig- Holstein-Gottorp r. 1616-1659 1597-1659 Christian Albert Duke of Schleswig- Holstein-Gottorp r. 1659-1695 1641-1695 Frederick IV Duke of Schleswig- Holstein-Gottorp r. 1695-1702 1671-1702 Christian August 1673-1726 House of Romanov Anna Duchess consort of Holstein-Gottorp r. 1725-1728 1708-1728 Charles Frederick Duke of Schleswig- Holstein-Gottorp r. 1702-1739 1700-1739 Adolf Frederick King of Sweden r. 1751-1771 1710-1771 Frederick August I Duke of Oldenburg r. 1774-1785 1711-1785 George Louis 1719-1763 House of Holstein- Gottorp-Romanov Peter III Emperor of Russia r. 1762-1762 1728-1762 Gustav III King of Sweden r. 1771-1792 1746-1792 Charles XIII King of Sweden r. 1809-1818 King of Norway r. 1814-1818 1748-1818 William Duke of Oldenburg r. 1785-1823 1754-1823 Peter I Grand Duke of Oldenburg r. 1823-1829 1755-1829 Paul I Emperor of Russia r. 1796-1801 1754-1801 Gustav IV Adolf King of Sweden r. 1792-1809 1778-1837 Augustus Grand Duke of Oldenburg r. 1829-1853 1783-1853 Alexander I Emperor of Russia r. 1801-1825 1777-1825 Nicholas I Emperor of Russia r. 1825-1855 1796-1855 Peter II Grand Duke of Oldenburg r. 1853-1900 1827-1900 Alexander II the Liberator Emperor of Russia r. 1855-1881 1818-1881 Frederick Augustus II Grand Duke of Oldenburg r. 1900-1918 1852-1931 Alexander III the Peacemaker Emperor of Russia r. 1881-1894 1845-1894 Nicholas II Emperor of Russia r. 1894-1917 1868-1918

• List of consorts of Holstein-Gottorp
• House of Holstein-Gottorp (Swedish line) — Swedish kings
• House of Romanov — Russian Emperors
• House of Glücksburg — Danish, Greek and Norwegian kings and queens
• House of Oldenburg

• Map over the duchies of Schleswig and Holstein in 1622 (the parts ruled by the duke of Gottorp are coloured yellow, the parts ruled by the king of Denmark are coloured pink, the parts ruled in common are coloured grey)

• Dukes of Holstein-Gottorp
• Former states and territories of Denmark
• Former states and territories of Schleswig-Holstein
• Danish noble titles
• States and territories disestablished in the 1770s

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