Callistus II

(d. 1124)

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(d. 1124),

Pope from 1119. He was a strong opponent of lay investiture; during his pontificate the Investiture Controversy was settled by the Concordat of Worms (1122). At the Lateran Council of 1123 he issued a series of decrees on simony, clerical celibacy, and the election of bishops.

Subjects: Christianity.

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