Morgan had acquired the degree of Doctor of Laws some time before 1398, when he is mentioned in the Episcopal Registers of St. David's as rector of Aberedw, although not yet ordained priest.[1] He became chaplain to King Henry V of England[2] and accompanied him on his campaigns in Normandy in 1417–20. He was given a diplomatic role and was appointed Chancellor of Normandy in April 1418.[3]
Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I., eds. (1996). Handbook of British Chronology (3rd, reprinted 2003 ed.). Cambridge: Cambridge University Press. ISBN0-521-56350-X.