The Gesta Comitum Barcinonensium names "Guiffredus…cum filio suo Guiffredo qui cognomento est Pilosus". The Crónica de San Juan de la Peña names "Guiffré que fue de la villa Darriá, sitiada en la tierra de Conflent cerca el río de Ter" when recording that he received "del Rey de Francia, el Condado de Barschinona", as well as "su fillo…Guiffré Pelloso" (stating that the latter was so-called "porque pellos hauía en lugars do homs nondan acostupnado de hauer"), although the Crónica is very confused in its narrative about the early rulers of Barcelona. No other source has so far been found which identifies two separate counts named Guifré, father and son.
He was confirmed by Charles II "le Chauve" King of the West Franks as Comte de Urgell, Cerdanya and Conflent in 870, and as Comte de Barcelona and Girona in 878. A charter dated 23 Sep 873 records the foundation of the church of Notre-Dame de Formiguera by "comitibus…Vuifredo et fratre eius Mirone et comitibus Olibano et fratre eius Ayfredo". "Wifredus…comes et marchio et Winiedildes cometissa" donated "Castru Mochoronio cum ecclesias Sancta Maria et Sanctum Petrum et Sanctum Stephanum" to the monastery of "Sancti Johannis Babtiste…in comitatu Ausona in Valle Riopullo juxta flumen Tezer" [San Juan de las Abadesas], when "filiam nostram Emmone" became abbess, by charter dated 27 Jun 875, which names "fratre meo…Seniefredo clerico". “Wifredo...comes et marchio et Winedildis commetissa” donated “castro Mochoronio...et in valle Riopullo villare...Sendare...in valle Martini...qui mihi advenit...de fratri meo Soniefredo” to San Juan Bautista de Osona, and “Winedildes commetissa” donated “in comitatu Impuritano villa...Chabannas de comparacionem de patre meo...Sonifredo”, by charter dated 26 Jun 885.
He encouraged colonisation in the unsettled frontier areas of Urgell and Cerdanya along the valley of the River Lord. He restored the Bishopric of Vic in 887. The death in 888 of Emperor Karl III marked a decline in Carolingian power and a trend towards independence of the Catalan counties. This was helped by their geographical remoteness from the central Frankish authority, their own relative stability and the direct relations which they had established with the Papacy. A charter dated 20 Apr 888 records that “Wifredus comes et Widinilles comitissa” dedicated Ripoll Santa Maria and donated “in alaudo...in comitatu Cerdania...villa...Loci...[que] nobis advenit ex comparatione de partibus Sesenando”. “Guifredus comes...et Winildis comitissa” donated property to Ripoll Santa Maria when “filium suum...Rodulfo” entered the monastery by charter dated 20 Apr 888. “Wifredus...comes...et Widinildis comitissa” dedicated Ripoll Sant Pere by charter dated 25 Jun 890. “Wifredus...comes et marchio et uxor mea Guinezelles” donated property “in villa Exaduce” to Ripoll Santa Maria by charter dated 31 Jul 890, subscribed by “...Willermus vicecomes”. A charter dated 21 Aug 897 names Wifredo and his wife Winidilda. Guifré was killed resisting a Moorish incursion which reached Barcelona.
The Crónica de San Juan de la Peña records that "Guiffré"... was killed "cerca de la villa de Senyora Sancta Maria del Puch". A necrology of Ripoll Sant Joan monastery records the death "III Id Aug" of the founder of the monastery (who was Guifré) and his burial there. On his death, his territories were divided between his sons. 1
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