THOMAS WINDSOR, or HICKMAN-WINDSOR (c. 1670-1738), second son of Thomas, Lord Windsor de Stan well, 1st earl of Plymouth, was in 1699 created Viscount Windsor of Blackcastle, in the peerage of Ireland. In 1712 he was created a peer of Great Britain with the title of Baron Mountjoy of the Isle of Wight, being descended in the female line from Sir Andrew Windsor (c. 1475-1543), 1st Baron Windsor de Stanwell, who married Elizabeth Blount, sister and co-heir of Edward, 2nd Baron Mountjoy of the first creation, who died an infant in 1475. On the death of Thomas's son Herbert in 1758 the title of Mountjoy again became extinct ; but it was revived in favour of John Stuart, earl of Bute, who married Charlotte Jane Hickman- Windsor, Herbert's daughter and sole heiress, and who in 1796 was created Viscount Mountjoy of the Isle of Wight, earl of Windsor, and marquess of the county of Bute, all of which titles are held by his descendant, the present marquess of Bute.
See Sir Alexander Croke, The Genealogical History of the Croke family, originally named Le Blount (2 vols., Oxford, 1823). For the Irish lord deputy, see also W. B. Devereux, Lives and Letters of the Devereux, Earls of Essex (2 vols., London, 1853); Fynes Moryson, Itinerary (London, 1617). Also, G. E. C., The Complete Peerage (London, 1889).
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)