Patriarch Sergius of Moscow

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Sergius
Patriarch of Moscow and all the Rus'
Patriarch Sergius I
Church	Russian Orthodox Church
See	Moscow
Installed	8 September 1943
Term ended	15 May 1944
Predecessor	St. Tikhon
Successor	Alexy I
Personal details
Born	Ivan Nikolayevich Stragorodsky (1867-01-23)January 23, 1867 Arzamas, Nizhny Novgorod Governorate, Russian Empire
Died	May 15, 1944(1944-05-15) (aged 77) Moscow, Soviet Union
Nationality	Russian
Denomination	Eastern Orthodox Church

Patriarch Sergius (Russian: Патриарх Сергий; born Ivan Nikolayevich Stragorodsky, Иван Николаевич Страгородский; January 23 [O.S. January 11] 1867 – May 15, 1944) was the 12th Patriarch of Moscow and all the Rus', from September 8, 1943 until his death on May 15, 1944. He was also the de facto head of the Russian Orthodox Church in 1925–1943, firstly as deputy Patriarchal locum tenens (1925–1937) subsequently as Patriarchal locum tenens (1937–1943).

The expression Sergianism, which designates a policy of unconditional loyalty to the Soviet regime practised by the leadership of the Russian Orthodox Church, and is associated with his 1927 declaration [ru], is derived from his name.^[1]