Other names: Matheus de Sancto Johanne (PMFC, Apel, Grove, MGG); M. de Sancto Jo. (Ch); M. de S. Johan (Ch); Mayhuet de Joan (PMFC XVIII); Mayshuet
Matheus came from the diocese of Morinum. He belonged to the chapel of Louis I of Anjou in 1378. From 1382 until at least 1386 he served as capellanus at the papal private chapel in Avignon.
