He was a descendant of the Orsini family, one of the oldest, most illustrious, and for centuries most powerful of the Roman princely families, whose origins, when stripped of legend, can be traced back to a certain Ursus de Paro, recorded at Rome in 998.
He belonged to the Orsini dynasty, a family of immense prestige, whose origins, when stripped of myth, can be traced back to a certain Ursus de Paro, documented at Rome in 998.