Descendants of his family have so far been traced in primary sources until the 1130s. "Alexander filius domine Rocce et gener domini Ugonis Clarimontis" with his wife "Avenia" donated property to San Anastasio di Carbone, with the consent of "son seigneur et beau-pre sire Hugues", by charter dated [Sep 1085/Aug 1096], subscribed by "Nicolaus frater domini [Alexandri]".
"Ugo de Claromonte et Alexander nepos Riccardi dapiferi" subscribed the charter dated [Sep 1100/Aug 1101] under which "Richard Snchal neveu de Robert Guiscard" donated property which "sa sur Aumberga" possessed until her death to the bishop of Nicastro.
The document is not dated but it can probably be assigned narrowly to , judging by the names of some of the individuals who are recorded, assuming that all parts of the survey were compiled at the same time.
The Catalogus records fiefholders in the following named duchies, counties and principalities within the Sicilian kingdom: "ducatus Apuliterr Baricomitatus Gravincomitatus Andricomitatu Cupersaniprincipatu Tarenticomitatus Montis Caveosicomitatus Liciicomitatus Civitatiscomitatu Loritellicomitatus Casertcomitatus Fundanus Domini di Aquinocomitatu Simonis comitis de Sangro".
Existing Norman families who supported King Federigo (the future Emperor Friedrich II) retained their positions, but dissatisfaction with the new rulers triggered rebellions and confiscation of their properties which followed the suppression of the revolts, for example the case of the Conti di Sanseverino.
During the ten years of rule by Manfredo King of Sicily, illegitimate son of Emperor Friedrich, a change in the practice of noble appointments can be observed from the primary sources, which reveal only a handful of new counts most of whom were the kings relatives on his mothers side of the family.
A handful of Lombard noble families survived the transition and continued to flourish under Norman rule.
They were also joined by families from northern Italy, in some cases related to the Aleramici dynasty of the Marchesi di Monferrato and Marchesi del Vasto e Saluzzo, who arrived in southern Italy as a result of dynastic marriages into the ruling family of the Norman counts of Apulia and Sicily, or as adventurers.
The new Norman rulers established their own network of counties and appointed their own followers as counts.
There were numerous new appointments, and counts were frequently switched from one county to another, or dispossessed entirely as punishment for participation in the numerous rebellions organised against the Norman rulers.
Nor has much information been found on the precise origins of the Norman counts who settled in southern Italy.