Research Notes:
A Wortley pedigree, by Hunter, reports that Alanus de Wortley, temp, Steph, was the father of Nicholas de Wortley. [1] [2]
[1] Joseph Hunter, South Yorkshire, the History and Topography of the Deanery of Doncaster, Vol. 2 (London: 1831), 324.
[2] Alfred Gatty, Wortley & the Wortleys: A Lecture (1877), 7, [InternetArchive].