Cyril VI of Constantinople resigns from his position as Ecumenical Patriarch under pressure from the Ottoman Empire.

Cyril VI of Constantinople, lay name Konstantinos Serpentzoglou, was the Ecumenical Patriarch of Constantinople between the years 1813 and 1818.

The Ottoman Empire, also called the Turkish Empire, was an imperial realm that controlled much of Southeast Europe, West Asia, and North Africa from the 14th to early 20th centuries; it also controlled parts of southeastern Central Europe, between the early 16th and early 18th centuries.

December 13 is the 347th day of the year in the Gregorian calendar; 18 days remain until the end of the year.