Instead of receiving a prebend, the normal path for a younger son of a high aristocratic family to join the church and enjoy the comfortable life of an ecclesiastical nobleman, Guy chose to join the austere dominican order, perhaps in the same monastery in Nicosia where he was later laid to rest. Two years after his elevation to bishop in 1357, he was the presiding bishop at the coronation of Peter I in the cathedral of St Sophia, Nicosia. It appears that he took part in the campaign to capture Alexandria in 1365, before succumbing to illness in his mansion in Nicosia in 1367.