ASCOT, (Oxfordshire) near Shirehampton, is a chapelry in Great Milton, on the S. bank of the r. Evanlode, and formerly was the estate of the Spensers, Es. of Winchester, 'till forfeited to the crown, by an attainder of Hugh Spenser and given to Thomas de Brotherton, E. of Norfolk, 5th son of K. Edw. I. but it went afterwards by the marriage of his daughter, to Sir Walter de Manny, and Edward de Montacute.