▁John ▁Bud den ▁and ▁William ▁Bur ton . ▁He ▁had ▁a ▁wide ▁range ▁of ▁pup ils ▁and ▁follow ers : ▁Ken elm ▁Dig by ▁and ▁Brian ▁Tw y ne ▁in ▁natural ▁philosophy , ▁with ▁The odore ▁Ha ak ▁coming ▁later . ▁The ▁mathematical ▁school ▁of ▁Allen ▁included ▁Thomas ▁Har ri ot ▁and ▁Walter ▁Warner , ▁and ▁Sir ▁John ▁Dav ies ▁( to ▁whom ▁Allen ▁taught ▁Catholic ▁doctrine ). ▁ ▁Mathemat ical ▁ge ography ▁was ▁an ▁important ▁top ical ▁subject ▁in ▁which ▁Allen ▁was ▁re put ed , ▁purs ued ▁by ▁several ▁groups ▁in ▁England , ▁including ▁another ▁around ▁Henry ▁Brig gs : ▁Allen ▁may ▁have ▁taught ▁the ▁ge ograph er ▁Richard ▁H ak lu yt . ▁He ▁did ▁teach ▁Robert ▁Fl ud d ▁and ▁Sir ▁Thomas ▁A yles bury . ▁In ▁the ▁human ities ▁there ▁were ▁Robert ▁H eg ge , ▁and ▁William ▁Ful be cke . ▁When ▁the ▁Cam den ▁Chair ▁of ▁An cient ▁History ▁was ▁being ▁set ▁up ▁in ▁the ▁early ▁ 1 6 2 0 s , ▁Allen ▁successfully ▁supported ▁the ▁candid acy ▁of ▁D eg ory ▁Whe are ▁with ▁William ▁Cam den ; ▁and ▁a ▁few ▁years ▁later , ▁in ▁ 1 6 2 6 , ▁Whe are ▁came ▁to ▁Gl ouc ester ▁Hall ▁as ▁Princi pal . ▁ ▁Allen ▁died ▁at ▁Gl ouc ester ▁Hall . ▁ ▁Other ▁associations ▁Allen ▁correspond ed ▁with ▁Henry ▁Per cy , ▁ 9 th ▁Earl ▁of ▁North umber land . ▁North umber land ▁invited ▁Allen ▁to ▁visit , ▁and ▁he ▁spent ▁some