A 13th century estate called Hesle appears to have covered the area of Chobham Park and Stanners.

Sometime, before 1250, the Abbot of Chertsey sold in perpetuity an estate in Chobham called Hesle - this meant that the estate would belong to the purchaser and his heirs forever and could be freely sold by them. It was free of the requirement to attend the Abbots court and most likely also free of secular customary services to the Abbot.

By about 1250, the de Batshete (Bagshete, Bagshot) family, hereditary foresters of Windsor Forest, held this estate in Chobham  ^{1 Vol XII xlvii  1 Vol XII lxxv}  

Hasle appears to have been leased  from Geoffrey de Bagshote by John de Hasle for an annual rent of 8s.  The land was held in perpetuity and free of service except service to the King pertaining to half a free virgate of land; John had to pay homage at Geoffrey's manor court (at Bagshot Manor).

When John de Hesle gave up the land, Geoffrey de Bagshote leased it in perpetuity to Ralph de Brudeford, formerly reeve of Stanes (Staines) for 35 shillings plus 8s annual rent on the same conditions as above.  The 8s annual rental  and the requirement to attend Geoffrey's court was later bought off for 2 marks and a peppercorn rent of one pound of cumin yearly.

Ralph then sold it in perpetuity to the Abbot for 40 marks (about 550 shillings).  In 1255, following the death of Geoffrey de Bagshote and the failure of the male line, Agnes his widow granted to the Abbot her claim of dower of one third of Hesle ^{1 Vol XII xlvii}.  And thus the Abbot regained full ownership of Hesle again.

Sometime during the next half century the Abbot leased Hessle Manor and Ham in Chertsey to the knighted family of de Hammes. In 1309 the de Hammes gave up to the Abbot part of Hesle, an area which appears to be centred on modern Chobham Park "the whole arable land moors and pastures lying on the western part of the Kings way which leads from Chertsey towards Chobham by the tenement called Stanors together with a certain moor called Holehurst for ever".  After this the remaining land held by the de Hammes appears to be called Stanors and Hesle is not mentioned.

For the subsequent history of this land see the pages describing the Chobham and Stanners manors.

References:

1    Chertsey Cartulary,  Surrey Record Society