[6] By 1123 the mesne lord of one of Wadard's manors was King Henry I's chamberlain Geoffrey de Clinton.

[6] The mesne lordship was passed down to Geoffrey's descendants until 1242 when it was sold to the de Cauntelo family, who held it until 1356.

[6] A mound southeast of the parish church marks the site of the house, and there are remains of the earthworks for the fishponds in a field to the south.

[6] By 1235 Wadard's other manor at Cassington was part of the honour of Saint Valery, which by 1300 belonged to Edmund, 2nd Earl of Cornwall.

[6] The manor house was on the south side of the village, apparently where Thames Mead Farm now stands.

In 1318 Lady Montacute, who was a major benefactor of the Priory of St Frideswide, Oxford, made Decorated Gothic additions to St Peter's: the west window of the nave, east window of the chancel, the broach spire and the upper part of the tower on which it rests.

[7] Fragments of Medieval wall painting from this period survive in the church, including a Doom over the Norman chancel arch.

[10] After 1827 a Methodist congregation developed in Cassington, with itinerant preachers holding meetings in villagers' cottages.

[1] In the 18th century the village had at least four public houses: the Bell, Chequers, Mason's Arms and Red Lion.

In 1724 Henry Allnut, a lawyer of the Middle Temple in London who had owned one of the manors at Cassington and had an estate at Goring Heath in South Oxfordshire, left a continuing income from his estate to teach, clothe and apprentice boys from five parishes including Cassington.

[12] It is now St Peter's Church of England primary school and occupies an adjacent modern school building[14] Between 1800 and 1802 the 4th Duke of Marlborough, who was a shareholder in the Oxford Canal, built the Cassington Cut, a "broad" canal about 1,300 yards (1,200 m) long[15] linking the Thames with a wharf about 1,000 yards (910 m) southwest of the village.

[1] In 1935 the stretch of the A40 road between Wolvercote and Eynsham was built through the parish past Cassington village.

In the early 2000s the Chequers was demolished and rebuilt by a redevelopment team led by Stephen Ibbitson, alongside a row of new houses and a village hall.

[28] Several thousand motorcyclists fill the village to see a static display of hundreds of historic British motorcycles.

[29] St Peter's School, the Women's institute, the village's pre-school playgroup and a Scout troop from nearby Eynsham all raise funds from the event.