Bishop Isidor (Kolokolov), Bishop of Mikhailovsk

DOUBLE HONEST WARNING: (1) the previous title "of Yekaterinodar" was not confirmed by any source — the bishop never had any connection to the Yekaterinodar (now Krasnodar) diocese; his actual title was "Bishop of Mikhailovsk," a vicariate of the Ryazan diocese; (2) according to Russian Wikipedia, Isidor (Kolokolov) is NOT canonized by the Moscow Patriarchate — he appears only in ROCOR's preliminary (non-authoritative for the MP) 1981 list, and his case is described as "controversial" given pre-revolutionary disciplinary allegations against him. No evidence was found of his inclusion in the glorification of New Martyrs by the Jubilee Council of 2000. For this reason the card is retained as a historical figure with an honest note of uncertain church status, rather than as an unconditionally canonized saint.

Bishop Isidor, born Pyotr Alexandrovich Kolokolov, was born April 3, 1866, in St. Petersburg. He successively held vicariate sees: Novgorod-Seversky (vicar of the Chernigov diocese, 1902–1903), Balakhna (vicar of the Nizhny Novgorod diocese, 1903–1906), Mikhailovsk (vicar of the Ryazan diocese, 1906–1911) — from the latter post he was removed in May 1911 "for acts unworthy of episcopal rank." He was one of the organizers of the monarchist movement in Nizhny Novgorod, closely acquainted with Grigori Rasputin (he partly officiated at his funeral rites in December 1916). After the revolution he lived in Vyatka.

He was arrested August 6, 1918, by the Ural Regional Cheka; on August 19, 1918, he was sentenced to death together with 17–18 others (monarchists, clergy, including a monk named Flavian) as a "monarchist and counter-revolutionary" without specific individual charges; he was shot (sources vary — September 19/20 or October 1, 1918). He was posthumously rehabilitated in 1993.

A feast date has not been established given his unconfirmed canonical status.