He was the son of the first baron,
Hugh I of Charpigny, and succeeded him after his death in the mid-13th century.[1]
In 1289 he also served for a few months as the bailli of the
King of Naples for Achaea.[2] He was much esteemed by the people of the
Morea, but was killed at
Xylokastro in 1295 by a Greek magnate from
Kalavryta named Photius, who mistook him for
Walter of Liederkerque, the
castellan of
Acrocorinth, against whom Photius had grievances. According to the Chronicle of the Morea, when the shouts of Guy's servants revealed to Photius his mistake, the Greek took the dying man in his arms and asked for forgiveness, but Guy died in his arms.[1][3][4] He was succeeded by his son,
Hugh II.[1]