The Tome of 1368 brings to an end the series of Palamite councils, with the Greek Church's canonization of Palamas, and with the establishment of the second Sunday of Lent as his feast, confirming once more the triumph of his doctrine in the Greek Church. The doctrine nevertheless met with strong opposition, even during the latter part of the fourteenth century, by authors like John Kyparissiotes and Manuel Kalekas, who continued the earlier critiques of Palamism by men like Gregory Akindynos and Nikephoros Gregoras. Contrary to Byzantine tradition, the reigning emperor, John V Palaiologos, unable to accept the teachings of Palamas, distanced himself from his Church's own theology and eventually abandoned it by making profession in 1369 of the Catholic faith.