Quote from http://www.greatwitleychurch.org.uk/ Great Witley Church displays a splendour which is unique amongst country churches in Britain, with exquisite gilded decorations throughout, numerous paintings by Antonio Bellucci, ten painted glass windows depicting scenes from the New Testament, highly decorative carving and a large monument by Rysbrack. It also has a fine organ, its case being from the instrument upon which Handel played."
So maybe he didn't actually play in Great Witley after all?