Silchester is well known as the home of the Celtic tribe of the Atrebates, and later for the Roman town of Calleva Atrebatum settled in the 1stc. AD. Above ground remains are dominated by the town wall which runs alongside the E end of the parish church. In 1066 there were two estates in Silchester: one of 5 hides which Alestan had held from King Edward in 1066, and which was held in 1086 by Ralph Bluet from Willian de Eu; the other of 3 hides which Cypping had held from Earl Harold in 1066, and was held in 1086 by Ralph de Mortimer. This latter passed to the Bluets, and thereafter there was only one manor in Silchester. From the 13thc the overlordship had passed to the Earl of Pembroke as Earl Marshal, and thence to the Earls of Norfolk after 1245. The Lordship of the manor passed from Ralph Bluet to his son, Ralph, who was holding in 1167. Ralph Bluet was also holding in 1204, 1228 and 1233, but they might not all have been the same man. In 1287 the owner, John Bluet, accompanied his overlord the Earl of Norfolk on the king's service in Wales. Later medieval history of the manor will be found in the VCH.
The advowson of the church has followed the ownership of the manor.
The chancel was restored in 1872-73, and the remainder, along with a rebuilt N porch and a new S porch and the replacement of the pews with benchs was complete by the time of the reopening of the church in 1878. The architect was T. H. Wyatt. A new extension was added to the S side of the nave in 2008