Callistus, Calistus, Callixtus, and Calixtus (all four in Latin) and Kallistos ( "the most beautiful one") may refer to:
Callistus, Calistus, Callixtus, and Calixtus (all four in Latin) and Kallistos ( "the most beautiful one") may refer to:
==Patriarchs, popes and antipopes== Patriarch Callistus I of Constantinople, patriarch from 1350 to 1353 and from 1354 to 1363 Patriarch Callistus II of Constantinople, patriarch in 1397 Saint Callixtus I, pope from c. 217 to 222 Pope Callixtus II, pope from 1119 to 1124 Antipope Callixtus III, antipope from 1168 to 1178 Pope Callixtus III, pope from 1455 to 1458
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).