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Dictionary of Medieval Names
from European Sources
StDav-1
R. F. Isaacson, editor. The Episcopal Registers of the Diocese of St. David's 1397 to 1518, volume 1: 1397-1407 of Cymmrodorion Record Series no. 6. London: The Honourable Society of Cymmrodorion, 1917.
Bonifacio Bonifacius Edmundo Guido Guidoni Guidonis Johanne Johannis Roberto Robertum