Clementia was daughter and sole heiress of Count Raymond of Catanzaro and Segelgarda (Sikilgarda; died 1167).
[3][2] The earliest known account of Clementia is in charter of her paternal grandmother, Bertha, who made a donation for the salvation of her son Geoffrey in December 1145.
[4][5] By early 1158, Clementia had succeeded her father as Countess of Catanzaro,[2] but was limited to power, due to her still being a child under the regency of her widowed mother.
They offered Matthew Bonnellus, who was engaged to Maio's daughter, the hand of Clementia in marriage.
[3] She is last mentioned in an order of Pope Alexander III placing the hospital of Buonalbergo, which had been built by Berard, lord of Pietrabbondante, under the protection of the Holy See at the request of Clementia.