DORCHESTER (the ancient Durocina), a village, formerly a market-town of Oxfordshire, situated at the junction of the Thames with the Thames, 50 miles from London. In 635 it was made the seat of a bishopric, which was removed to Lincoln in 1086. The church is a curious old building in the Norman and later styles; it has a leaden font said to be the most ancient of its kind in England; four brasses, effigies of bishops; and a window of richly painted glass, representing the genealogy of Christ from Jesse. Numerous Roman remains have been found in the vicinity.