The Märcani Mosque (pronounced [mærʑæˈni]; Cyrillic: (әл-)Мәрҗани мәчете; formerly Äfände, i.e. Seigniorial, The First Cathedral Mosque, The Yunısovs' Mosque), also spelled al-Marjani, Mardjani and Mardzhani (Russian: Мечеть (аль-)Марджани́) is a mosque in Kazan, Russia, built in 1766-1770 by Catherine the Great's authority and on the city's population's donations.