John XII of Constantinople
John XII was the Ecumenical Patriarch of Constantinople from 1294 to 1303. John XII was born in Sozopolis on the western Black Sea coast. Prior to becoming patriarch, he was known as Kosmas. He crowned Michael IX as co-emperor on 21 May 1294. He led a coalition of bishops against Andronicus II's attempt to use the power of the Church to suppress uprisings.
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