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| Adolf Frederick I | |
|---|---|
Portrait byDaniel Blok | |
| Duke of Mecklenburg-Schwerin | |
| Reign | 22 March 1592 - 27 February 1658 (Deposed byWallenstein 1628-1631) |
| Predecessor | John VII |
| Successor | Christian Louis I |
| Born | (1588-12-15)15 December 1588 Schwerin,Duchy of Mecklenburg-Schwerin,Holy Roman Empire |
| Died | 27 February 1658(1658-02-27) (aged 69) Schwerin, Duchy of Mecklenburg-Schwerin, Holy Roman Empire |
| Spouse | |
| Issue Detail |
|
| House | Mecklenburg |
| Father | John VII, Duke of Mecklenburg-Schwerin |
| Mother | Sophia of Holstein-Gottorp |
Adolf Frederick I (German:Adolf Friedrich I; 15 December 1588 – 27 February 1658) was the reigning Duke ofMecklenburg-Schwerin from his father's death in 1592 until 1628 and again from 1631 to 1658. Between 1634 and 1648 Adolf Frederick also ruled thePrince-Bishopric of Schwerin as itsadministrator.
He was a son ofJohn VII, Duke of Mecklenburg-Schwerin andSophia, daughter ofAdolf, Duke of Holstein-Gottorp,[1] and his wifeChristine of Hesse.
At first, Adolf Frederick and his brotherJohn Albert II reigned under the guardianship of DukeUlrich III of Mecklenburg-Güstrow andCharles I of Mecklenburg (their father's uncles).
The two brothers Adolf Frederick and John Albert, took over governance of Mecklenburg-Schwerin beginning on 16 April 1608.[1] After the death of Charles on 22 July 1610 they also governed in Mecklenburg-Güstrow.[1]
In 1621 the duchy of Mecklenburg was formally divided between the two brothers, Adolf Frederick ruling in Mecklenburg-Schwerin and John Albert ruling in Mecklenburg-Güstrow.[1]
During theThirty Years' War,Albrecht von Wallenstein ousted the dukes after they secretly sided with KingChristian IV of Denmark againstHoly Roman EmperorFerdinand II.[1] Wallenstein ruled the duchies from 1627 until 1631, when the Swedes restored the under KingGustavus Adolphus. In 1634 Adolf Frederick succeededUlrik of Denmark as the last Administrator of thePrince-Bishopric of Schwerin before its secularisation.
Adolf Frederick I fathered 19 children in total.
He was married for the first time on 4 September 1622 to his first cousinAnna Maria of Ostfriesland (1601–1634), daughter of CountEnno III ofEast Frisia andAnna ofSchleswig-Holstein-Gottorp. They had the following children:

Adolf Frederick married for a second time in 1635 to Marie Katharina (1616–1665), daughter of DukeJulius Ernest, Duke of Brunswick-Dannenberg, and Maria of East Frisia (1582–1616). They had the following children:
| Ancestors of Adolphus Frederick I |
|---|
Adolphus Frederick of Mecklenburg Born: 15 December 1588 inSchwerin Died: 27 February 1658 ibidem | ||
| Regnal titles | ||
|---|---|---|
| Preceded by | Duke of Mecklenburg-Schwerin as Adolphus Frederick I 1592–1628 and again 1631–1658 interrupted byWallenstein, who deposed him | Succeeded by |
| Religious titles | ||
| Regnal titles | ||
| Vacant Title last held by Ulrik of Denmarkas Ulrich III | Administrator of the Prince-Bishopric of Schwerin 1634–1648 | Secularised:Principality of Schwerin inpersonal union with Mecklenburg-Schwerin |