He dedicated two churches, St. Paul's and Sts. Sebastian and George. Leo also reformed Gregorian Chant and composed several sacred hymns for the Divine Office. Death Leo died on 28 June 683, and was succeeded by Benedict II. He was originally buried in his own monument; however, some years after his death, his remains were put into a tomb that contained the first four of his papal namesakes. References 611 births 683 deaths Popes Sicilian popes Greek popes Italian popes Papal saints Popes of the Byzantine Papacy 7th-century archbishops 7th-century Christian saints 7th-century popes Burials at St. Peter's Basilica