Calapin, one of these royal infants, was saved from his cruel brother, and baptized at Rome under the name of Callistus Othomannus. The emperor Frederic III. presented him with an estate in Austria, where he ended his life; and Cuspinian, who in his youth conversed with the aged prince at Vienna, applauds his piety and wisdom (de Caesaribus, p. 672, 673).