Gui de Maillesec

Gui de Maillesec, also known as Guy de Malsec, Malésec, or Malesset, was a French Catholic bishop and cardinal. He may have been a nephew of Pope Gregory XI or perhaps a more distant relative. He was also a nephew of Pope Innocent VI. He played a part in the election of antipope Benedict XIII of the Avignon Obedience in 1394, where he was the second most senior cardinal. He played an even more prominent role in Benedict's repudiation and deposition. Gui was sometimes referred to as the "Cardinal of Poitiers" or the "Cardinal of Palestrina".