John Crescentius [SEP] father
John Crescentius
John Crescentius (Italian: "Giovanni Crescenzio") also John II Crescentius or Crescentius III (d. 1012) was the son of Crescentius the Younger (Crescentius II). He succeeded to his father's title of consul and patrician of Rome in 1002 and held it to his death.
Early in 1001, a revolt broke out in Rome against the Emperor Otto III, who now permanently resided in Rome. The Emperor and Pope Sylvester II, the first pope of French nationality, were compelled to flee
of Gaeta, from which the family gets its name. His successor was Constantine, who took the name "Cagetanus" and ruled in the latter half of the 10th century. In the late eleventh century, a descendant of his, Crescentius, was duke. This Crescentius was the father of two illustrious people: his successor, Marinus, and his son John (called "Gaetanus" or "Coniulo") from Pisa, who was Pope Gelasius II. Marinus was succeeded by his son Crescentius, who defended his uncle