Later, the title Prince of Carbery (Cairbre) would be adopted by the MacCarthy Reaghs, although there is significant doubt as to whether this is actually derived from the former tribal name of the O'Donovans (Ui Chairpre of the Ui Fidgente), and if so, then what circumstances led to it being extended well beyond the territories belonging to the O'Donovans. In any case, the Carberry septs of the Donovans were junior to the MacCarthy Reaghs, from whom they received the White Wand. The leading family of the Carbery O'Donovans, Clann Cathail, paid to their overlords a surprisingly small, economically insignificant rent, but the precise reason for this is lost to history. Possibly earlier times were recalled, or it may be due to the special relationship they developed with Fíngin Reanna Róin Mac Carthaig (see below).