Weston-on-the-Green is situated 8 miles NE of Oxford and 4 miles SW of Bicester. The present church consists of nave and chancel built as one rectangle, with a W tower. The oldest part is now the lower stage of the tower, dating from c. 1200, although it was partially rebuilt in the C13th. The remainder of the church was rebuilt in 1743-4. It has a large and elaborately carved classical S doorway with a pediment, possibly brought from elsewhere, that is unexpected in this setting. Romanesque features remain on the lower stage of the tower, with a round-headed blocked doorway and three small windows, and a memorable Romanesque font with intersecting arcading.

There was probably an C11th church here (VCH). Wigod of Wallingford was followed as lord by Robert d’Oilly of Oxford, who granted part of his Weston demesne to his foundation of the church of St George’s in Oxford Castle. The church was part of Robert d’Oilly the Younger’s foundation grant to Oseney Abbey, c. 1130, and it was retained by the Abbey until its dissolution. The church was already in a state of decay by that time, and in 1741 it was falling down. It was rebuilt in 1743-4.

The author knows of no discussion of the provenance of the Romanesque font in the literature.