St William of Norwich
Said to have been murdered in 1144, supposedly by Jews for ritual purposes; his anti-Semitic cult, resembling that of Little St Hugh, had a local popularity, and images of him survive in screen paintings in East Anglia.
William of Occam
(c. 1285–1349), English philosopher and Franciscan friar. A defender of nominalism, he is known for the maxim called Occam's razor, that in explaining a thing no more assumptions should be made than are necessary.
From The Oxford Dictionary of Phrase and Fable in Oxford Reference.