Person:Agnes Dronsfield (1)

Clay, J. W, and William Dugdale. Dugdale's visitation of Yorkshire, with additions. (Exeter: William Pollard, 1899-1917)
1:294.

'John Wentworth, of North Elmsall, living 1413, mar. Agnes, sister and coh. of Sir Wm. Dronsfield, of West Bretton.'
College of Arms (United Kingdom), and Charles Best Norcliffe (ed.). The visitation of Yorkshire in the years 1563 and 1564, made by William Flower, Esquire, Norroy King of Arms. (London: Harleian Society, 1881)
p. 340.

'John Wentworth son and heyr [of John Wentworth] [married] Agnes doughter & quoheyre of William Dransfeld of West Breton.'

This is the only one of the 3 sources that indicates that Agnes was the daughter of William, and appears to be an error. While her father may have been named William, it appears that she was the coheir of her brother William.
Wentworth, John. The Wentworth Genealogy: English and American. (Boston: Little, Brown and Company, 1878)
1:26.

'John Wentworth, Esq., of North Elmsall, who married Agnes, sister and coheir of Sir William Dronsfield, of West Bretton, in Yorkshire, ...'
↑ Birth year estimated based on estimated birth years of her husband and sons.