William de Braose, in the 22nd of Edward I [1293], had summons to attend the king with other great men to advise regarding the important affairs of the realm. And about the beginning of the ensuing September, he was one of those who embarked at Portsmouth with horse and arms in the king's service for Gascony. In the 28th and 29th of the same reign,he was in the wars of Scotland, and in the latter year he had summons to parliament as a baron. In the 32nd [1304], he was again in the Scottish wars and then enjoyed so much favour that the king not only confirmed to him and his heirs the grant of Gower Land, made by King john to his ancestor, but granted that he and they should thenceforth enjoy all regal jurisdiction, liberties, and privileges there in as ample a manner as Gilder de Clare, son of Richard de Clare, sometimes Earl of Gloucester, had in all his lands of Glamorgan. For several years afterwards, his lordship appears to have been constantly engaged upon the same theatre of war and was always eminently distinguished. In the 14th Edward II [1321], according to Thomas of Walsingham, being "a person who had a large patrimony but a great unthrift," his lordship put up for sale his noble territory of Gower Land, and absolutely sold it under the king's license to the Earl of Hereford; but its contiguity to the lands of the younger Spencer (who was then high in royal favour, and the king's chamberlain), attracting the attention of that minion, he forcibly possessed himself of the estate and thus gave rise to the insurrection headed by Thomas Plantagenet, Earl of Lancaster. Lord Braose m. Aliva, dau. of Thomas de Moulton, and had issue, Aliva, m. 1st, to John de Mowbray, and 2ndly, to Sir Richard de Pershall, and Joan, m. to John* de Bohun, of Midhurst. His lordship, who had regular summons to parliament to 18 September, 1322, d. in that year, when the Barony of Braose, of Gower, fell into abeyance between his daus. and co-heirs, and it so continues with their representatives. [Sir Bernard Burke, Dormant and Extinct Peerages, Burke's Peerage Ltd, London, England, 1883, pp. 72-73, Braose, Barons Braose, of Gower]
* The Bohun entry on pg. 58 in the same source cited above, states it was James de Bohun, younger brother of John de Bohun, who d. s. p., that Joan married.