Of Thurnham, Kent.
Robert held three fees of Walkelini Mamignot (Walchelin Maminot), 1166 (Red Book of the Exchequer).
Founder of Combwell priory: an inspeximus of Henry III (dated at Westminster, 6 July, 1227) confirms the gift of the church of St. Mary of Turnham, previously confirmed by Stephen de Turnham:
' ...donationem Roberti de Turnham patris mei,..'
Benefactor of Bayham priory: ' Robertus de Turneham', gave the land of Rokeland to Bayham abbey, which his brother Michael held of him by the service of 1/6 of a knight's fee.