William Bibbesworth took his name from the Hertfordshire manor which had been held by his ancestors since 1277, or even earlier, and which was settled on him by his parents in 1402. From them he also inherited the manors of Great Saling, Latton Hall and South House in Great Waltham, Essex, which were said to be worth £22 a year in 1412, and probably produced rather more.
Comparatively little evidence has survived about Bibbesworth’s career, since he was evidently reluctant to involve himself in the business of local government. He first appears in December 1399 as a feoffee of Thomas, Lord Morley’s Hertfordshire property, although he conveyed his title to others within a matter of days. In June 1408, he offered joint sureties in Chancery on behalf of John Chertseye, being then described as ‘of Hertfordshire’. Two years later he was involved in litigation for the recovery of £4 17s.10d. owed to him by a Middlesex labourer, but he appears to have had little success with this suit.
