The relationship between the first two vicomtes named Cadelon has not been confirmed, although it is likely that they were father and son. Europäische Stammtafeln shows a third Cadelon in the series between the individuals who are shown below as Cadelon [I] and Cadelon [II]. However, from a chronological point of view it is more likely that there were only two different vicomtes Cadelon mentioned between [921] and [967]. The same source also shows yet another Cadelon between the ones shown below as Cadelon [III] and Cadelon [IV]. However, assigning broad estimated birth date ranges to each individual in this family shows that there is probably insufficient time for another generation, although it is recognised that this is an inevitably inaccurate process. The name "Cadelon" suggests a connection with "Chadalhoh/Kadelonis", the name of several counts in Carinthia and Bavaria between the 9th and 11th centuries.
"Iterius" donated property "in pago Briocense…villa…Lupchiacus" to Saint-Jean d'Angély by charter dated Jul [921] subscribed by "Kadelonis vicecomitis, Mainardi vicecomitis, Kaldelmi vicarii…". "Aimericus vicecomes et advocatus sancti Maxentii" claimed the return of property to the abbey from "Godobaldus et Ermenbertus" by charter dated 28 Apr 925 subscribed by "Heldegarii vicecomiti, Saverici vicecomiti…Kadœlonis". "Cadelonis vicecomitis" subscribed the donation by "Rotbertus clericus" of property to St Cyprien, Poitiers by charter dated [932/36]. "Cadelonis" subscribed the donation by "Tetelo episcopus in via domni Froterii episcopi" of property to St Cyprien, Poitiers by charter dated 936. "Willelmi comitis, Hugoni comitis, item Hugoni, Savarici vicecomitis, Kadeloni vicecomitis, Adraldi vicecomitis, Radulfi vicecomitis…" subscribed the charter dated [936/37] ("anno I Ludovico regnante") under which "Senegundis" donated "alodem suum in pago Alienense, in vicaria Basiacinse in villa…Fornax…" to St Cyprien, Poitiers. "Guillelmum…Pictavorum comes" transferred land by charter dated Mar 939 subscribed by "…Rorgoni, Kadeloni…". "Kadelonis vicecomitis" subscribed a charter dated Jun 941 under which "Gumbaldus et Gosselinus et uxor mea Gausbergis" donated property "in pago Pictavo in vicaria Marniacense in villa de Lidemniaco" to Saint-Jean d'Angély. "Guillelmum…Pictavorum comes" transferred land by charter dated Dec 948 subscribed by "…Cadeloni, iterum Cadeloni vicarii…". 1
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