In 1422, Thomas Holden (Sometimes said to be granted to Roger Holden) was granted, by Cardinal Langley, Bishop of Durham, (In year 16 of his reign) a Durham licence to crenellate Ludworth' (Ludworth Tower)

"Has licence to enclose, fortify, and crenellate his manor of Ludworth'."

In 1422 Bishop Langley granted licence to Thomas Holden to crenellate his manor.
A family called Ludworth owned Ludworth in the 1200s and 1300s and took their name from the place. Ludworth passed later to Thomas Holden who was wary of the Scottish raids that ravaged Durham. (Simpson)
Ludworth, in which the church acquired an interest at an early date was held by a family of the same name from before 1209 to 1349, and afterwards by the Holdens, who alienated it to Roger Thornton, merchant, whose heiress carried it to the family of Lumley. (Mackenzie and Ross)
'licence of bishop Langley, dated the 30th of November, 1428, for an exchange of lands between the convent of Durham and Thomas Holden, by which he was to take lands in Ludworth for lands and rents m Windegates' (Hutchinson p15)
I'm uncertain as to when Holden actually obtained the manor, although he was clearly increasing his holdings at this time.

Original source is

• 1872, Report of the Deputy Keeper Public Records Vol33 p191

(In fact, the original source given is usually a transcription/translation of what are precious medieval documents not readily availably. It should be noted that these transcription/translations often date to the nineteenth or early twentieth centuries and that unwitting bias of transcribers may affect the translation. Care should also be taken to avoid giving modern meaning to the medieval use of certain stock words and terms.)

Significant later source are;

• Simpson, David, 2003, 'Towering relic that was was ruined by a 'thoughtless population'' online http://www.theclarion.co.uk/the_north_east/history/echomemories/durham/405/021105.html
  Emery, Anthony, 1996, Greater Medieval Houses Vol1 (Cambridge) p159
  King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol1 p141n13
  Bates, C.J., 1891, Border Holds of Northumberland (London and Newcastle: Andrew Reid) p. xv
  Eneas Mackenzie, Marvin Ross, 1834, An Historical, Topographical, and Descriptive View of the County Palatine of Durham (Mackenzie and Dent)
  Hutchinson, Wm, 1785-94, The History and Antiquities of the County Palatine of Durham Vol1 p334 notes

I'm unable to identify Thomas Holden.

More details about licences to crenellate can be found here.

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