Cecilia di Medania

-http://fmg.ac/Projects/MedLands/NEAPOLITAN%20NOBILITY.htm#CeciliaMe...

(b) [CECILIA di Medania . The name of the second wife of Rinaldo [I] d’Aquino is not known. Many unsourced internet-based “genealogies” state that he married “Cecilia di Medania, daughter of Robert de Medania Conte di Buonalbergo & his wife Judith ---“. The primary source which confirms this information has not been identified. Scandone, in his detailed studies of the Aquino family in 1901/1903 does not mention the marriage, which suggests that speculation about the connection may have first been proposed after that date, although the origin of the theory has not been traced. If it is correct that Cecilia´s existence is speculative, the purpose may have been to explain (1) references to her daughter as “Sibilla di Medania” and (2) the installation of Rinaldo´s son Riccardo as conti di Acerra. If these represent the premises on which the theory was based, neither passes muster as will be explained. Concerning the first point, no primary source has yet been identified which names Rinaldo´s daughter as “di Medania”. The earliest identified secondary source reference to “Sibilla di Medania” is Francesco Capecelatro´s 1640 history of Naples[677]. The book includes no primary source citation nor any reference to the origin of the name. The exact wording of Capecelatro´s passage has been copied by numerous subsequent works ever since[678]. The suspicion is that Sibilla was never referred to as “di Medania” during her lifetime and that the reference represents an unreliable reflection of history. On the second point, the Italian Wikipedia (without citing any sources to justify its statements) says that the county of Acerra, previously held by Ruggiero di Medania Conte di Buonalbergo, passed to Riccardo d’Aquino as a result of his father´s marriage to “Cecilia di Medania” who would have been Ruggiero´s sister[679]. This is pure speculation, and the assumption that the county must have passed by inheritance is unsustainable: numerous examples are found in the 12th century kingdom of Sicily/Naples where shifting loyalties among the nobility appear to have triggered changes in comital appointments, including Avellino, Aversa, Conversano, Gravina and Molise, rather than transfer by inheritance. In any case, the search for an “inheritance” explanation ceases to be relevant if Rinaldo [I]´s son Riccardo was born to an earlier wife in relation to whom no connection with “Medania” is asserted. In conclusion, until more information comes to light, the existence of this “Cecilia di Medania” should be treated with caution.

m [as his second wife,] RINALDO [I] d’Aquino, son of LANDO [IV] Conte d’Aquino & his wife --- (-after [1168]).]

PLS source for (c.1115 - 1147) :
because wiki of her daughter: (1153 - 1205)