Osborn Wyddel the Irishman (Welsh: Osbwrn Ystiwart Edwart)[3] (fl. 1280), also known as Osborne Fitzgerald, was the founder of the Fitzgerald House of Corsygedol, Wynne of Ynys maengwyn, Wynne of Maes y neuadd, and other important families in Merionethshire.[1] One of its cadet branches is the House of Yale.[1]