The Chronicle of Adémar de Chabannes names "Bosonis vetuli de Marca" as father of "Helias Petragoricensi comite". The Chronicle of Saint-Maxence names "Audeberti comitis Marchiæ…filius Bernardi, qui fuit Audeberti, qui fuit Bosonis, qui Sulpicii, qui fuit Godfredi primi comitis de Karrofo".
Comte de la Marche. “Droticus” donated “æcclesiam in pago Lemovicensi in proprio alodo...ad Turrim...sancti Salvatoris” to Limoges Saint-Etienne, in the presence of “seniorum meorum Rainaldi...vicecomitis et Bosonis marchionis” [the latter presumably identified as Boson [I] Comte de la Marche], by charter dated Aug 958. 1
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