Philotheos Kokkinos: Metropolitan in Herakleia of Thrace and a patriarch of Constantinople (1353-55 and 1364-76). He was a fervent supporter of Palamas as well as of John VI Kantakouzenos. His second patriarchate is associated with the canonisation of Gregory Palamas. His beliefs are expressed in the written works - homeletic, dogmatic, liturgical and hagiographical - that he left behind.