Enfant(s):
Hangleton passed to Ralph de Chesney, who is believed to have married the daughter of William de Watevile. It did not pass with Ralph's other manors to the Says, but had returned into the hands of William de Warenne II before 1098, and came subsequently to a family called Cockfield. About 1180 Earl Hamelin de Warenne confirmed an agreement made between Adam de Cukufeld and the monks of St. Pancras, Lewes, concerning 10 librates of land in Hangleton which the earl had given back to Adam. In 1199 Adam's widow Lucy and her son Adam recovered land in Hangleton of which they had been unjustly disseised by Wolwin, reeve of Blatchington, and Peter Ketel. Lucy was still alive in 1201; Adam was dead by 1214, and his son Robert, who confirmed to the nuns of Delapré (Northants.) a gift of land made by his grandmother Lucy, held one knight's fee in Hangleton in 1242. Robert de Cockfield in 1250 granted a messuage and two carucates of land in Hangleton and Aldrington to his son Robert in exchange for an annuity of £20. Robert de Cockfield held Hangleton and half of Aldrington in 1284-5, and in 1291 he granted it to Luke de Poynings, retaining for himself a life interest. From: 'Parishes: Hangleton', A History of the County of Sussex: Volume 7: The rape of Lewes (1940), pp. 277-281. URL: http://www.british-history.ac.uk/report.aspx?compid=56967&strquery=coc kfield Date accessed: 07 March 2012.
NOTE: I believe the fact that the Manor of Hangleton was granted by Robert de Cockfield to Luke de Poynings places this line as the antecedents of Adam de Cokefield who m. Agatha de Aguillon and became the brother-in-law of Thomas de Poynings, father of Luke.