At the Council of Florence, the Greek “metropolitan of Kiev and all Russia,” Isidore, was one of the major architects of the Union of Florence. Having signed the decree, he returned to Moscow in 1441 as a Roman cardinal but was rejected by both church and state, arrested, and then allowed to escape to Lithuania. In 1448, after much hesitation, the Russians received a new primate, Jonas, elected by their own bishops. Their church became autocephalous, administratively independent under a “metropolitan of all Russia,” residing in Moscow. In territories controlled by Poland, Rome (in 1458) appointed another “metropolitan of Kiev ...(100 of 21255 words)