The Imperial Gate (Bâb-ı Hümâyûn), leading to the outermost courtyard ofTopkapi Palace, was known as the Sublime Porte until the 18th century.
The name has its origins in the old practice in which the ruler announced his official decisions and judgements at the gate of his palace.[2] This was the practice in theByzantine Empire and it was also adopted byOttoman Turk sultans sinceOrhan I. The palace of the sultan, or the gate leading to it, therefore became known as the "High Gate". This name referred first to a palace inBursa, Turkey. After the Ottomans had conqueredConstantinople, nowIstanbul, the gate now known as the Imperial Gate (Turkish:Bâb-ı Hümâyûn), leading to the outermost courtyard of theTopkapı Palace, first became known as the "High Gate", or the "Sublime Porte".[2][3]
When SultanSuleiman the Magnificent sealedan alliance with KingFrancis I of France in 1536, the French diplomats walked through the monumental gate then known asBâb-ı Âlî (nowBâb-ı Hümâyûn) in order to reach the Vizierate of Constantinople, seat of the Sultan's government.[citation needed] French being the language of diplomacy, the French translationSublime Porte was soon adopted in most other European languages, including English, to refer not only to the actual gate but as a metonymy for the Ottoman Empire.[4][additional citation(s) needed]
Crowd gathering in front of the Porte's buildings shortly after hearing about the1913 Ottoman coup d'état (also known as the Raid on the Sublime Porte) inside.
In the 18th century, a new great Italian-styled office building was built just west ofTopkapı Palace area, on the other side of Alemdar Caddesi (Alemdar street). This became the location of theGrand Vizier and many ministries. Thereafter, this building, and the monumental gate leading to its courtyards, became known as the Sublime Porte (Bâb-ı Âlî);[5] colloquially it was also known as the Gate of thePasha (paşa kapusu).[2][6] The building was rebuilt following a fire in 1839,[1] and badly damaged by another fire in 1911.[6] Today, the buildings house theIstanbul Governor's Office.[5]