The church retains no Romanesque fabric in situ but 3 fragments of roll mouldings, incorporated into the plinth of the north aisle, may be remnants from a 12thc. campaign of building. The font is also 12thc. in date.

In 1066 Heddington manor was held by Earl Harold, in 1086 by Edward of Salisbury. It apparently passed to Humphrey de Bohun (d. c. 1129) on his marriage to Edward's daughter Maud, and in turn to Humphrey's and Maud's son Humphrey (d. c. 1165), that Humphrey's son Humphrey (d. c. 1187), and that Humphrey's son Henry de Bohun (cr. earl of Hereford 1200, d. 1220).

The church was in existence by 1130, when the advowson was given to Farleigh Priory. However the monks did not appropriate the rectory, instead extracting a portion from the revenues of the rector.

In The Buildings of England it is believed that both the font bowl and the shaft on which it stands are 19thc., specifically dating them to 1840. Supporting the assertion that the shaft dates from the 19thc. is the crispness of the carving. Also the foliage in the field at the top of the chevron decoration is not 12thc. in character, and would be more appropriate for a later medieval date.

In The Buildings of England the decoration on the bowl is also suggested to be 19thc. in date. However, it is possible that the bowl is a simple, fairly coarse, 12thc. design.