(nr. 64 ) Pope vs Emperor ( from The Oxford Dictionary) - Guelph, Guelf, (gwe-) n. Member of medieval Italian Party supporting Pope against Emperor (opp. Ghibelline) ; hence ~ic, -ism (3) n. [f. It. Guelfo f. MHG Welf name of founder of princely family of Guelphs, ancestors of British Royal Family] .