Hunter 1831, 460, says 'Campsal church was the joint work of the Lacis, the chief lords, and the Reineviles, the subinfudatories. It exceded [the churches of Bramwith, Owston and Burgh] in magnificence as much as it did in the extent of country that was attached to it' [this included Norton, Sutton, Askern, Moss and Fenwick].
The manor thrived after the Conquest, rather than retracting, and was largely owned directly by Ilbert de Lacy (Hunter 1831, 463).
There were originally two rectors, one appointed by each family; this continued until about the time of Henry III (Hunter 1831, 463).