Research Notes:
The Visitation of Yorkshire states that "Sir Roger Fytz williams of Woodhall Knight" married "Mawd doughter of Sir John Bosvyle of Ardsley Knight." and that they were the parents of John Fytz william. [1]
[1] William Flower, The Visitation of Yorkshire in the years 1563 and 1564 (London: 1881), 27, of 27-30, Bosbyle pedigree, [InternetArchive].