Jump up ^ During that time ( 1312 -- 1317 ) Henry Harclay was the Chancellor of Oxford .
It is believed that William was Chancellor 's 's pupil ( see John Marenbon ( ed . ) , Medieval Philosophy , Routledge , 2003 , p. 329 ) .
Jump up ^ During that time ( 1312 -- 1317 ) Henry Harclay was the Chancellor of Oxford and it is believed that William was his pupil ( see John Marenbon ( ed . ) , Medieval Philosophy , Routledge , 2003 , p. 329 ) .