The Gesta Comitum Barcinonensium names (in order) "Radulfum, Guiffredum, Mironem et Suniarium" as the four sons of "Guiffredus Pilosus comes" & his wife, specifying that Guifré was killed by poison "sine filio" and was buried "in monasterio Rivipolli".His parentage is confirmed by the charter dated 23 Nov 934 under which “Suniarius…comes et Marchio” donated property to the church of Girona, for the souls of “patri meo Wifredi quondam, vel fratri meo Wifredi quondam…”.
He succeeded his father in 897 as Comte de Barcelona, Girona i Osona, with nominal superiority over his brothers. He did homage to Charles II “le Simple” King of the Franks in 899. "Wifredo…comite et marchione filii qd. Guidfredi marchione beate memorie" donated property "in castro Cervilione territorio Barch…ultra fluvium Lubricatum" to the monastery of Sant Cugat del Vallés by charter dated 12 Apr 904. "Gotus et uxori mea Columba…" sold properties "in territorio de Puritano in terminio de Pinus" to "Wifredus commes et uxori sue Garesindes" by charter dated 20 Jul 905. A charter dated 18 Nov 908 records the sale of "villa de Palacio" to "domno Wifredo comite hac marchio que vocant Borrello et uxori tue Gersinda". "Wifredus chomes et marchio" donated property "in comitatu Ausona" by charter dated 23 Dec 909.
“Idelxerus episcopus, Garsendis comitissa, Suniarius comes et marchio, Ermemirus vicecomes”, as executors of “Wifredo comite quondam filius fuit de Wifredo comite quondam”, executed the testament of the deceased by charter dated 1 Dec 911. The Chronicon alterum Rivipullense records the death in 912 of “Wifredi comitis bonæ memoriæ, ciujus pater quiescit in cenobio S. Mariæ Rivipull”. 1
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