Guicpert or Wigbert (died before 781) was the abbot of Farfa for eleven months in 769–770 and probably also the Bishop of Rieti in 778.
[1] According to the twelfth-century chronicler of the abbey, Gregory of Catino, Wigbert was an Englishman and already a bishop when he convinced the dying Abbot Alan of Farfa to name him as his successor.
Nevertheless, the monks found Wigbert's rule a "tyranny" (in Gregory's words) and sought the king, Desiderius, to remove him and confirm their freedom to elect a successor, which he did.
[3] Nothing is known about Wigbert between February 770 and April 778, but in the latter month the bishop of Rieti, named Guicpert in the source, received for the duration of his life the church of Saint Michael in Rieti from Hildeprand, Duke of Spoleto.
[5] By July 781, when a judicial decision of Charlemagne placed the church under the control of Farfa, Guicpert was dead.