Early Life
David was the eldest son of
John, 2nd Lord Kennedy
Career & Family Life
From
The Scots Peerage1
He was knighted 29 January 1487-88 when James, second son of King James III, was made Earl of Ross. On 9 July 1489 he and his wife got a charter of lands of Balgra, Auchentibbir, Pacokbank, and other lands of Cubninghame, on resignation of his father John, Lord Kennedy. The same day he was granted the bailiary of Carrick, and appears as bailie of Carrick in that year and afterwards. He was a witness to charters by the Earl of Angus to his sister Janet in 1498 of lands of Braidwood and Crawford Lindsay. On 17 February 1501-2 he got a charter from James IV of the lands and baronies of Cassilis and Dunure, and on 30 March 1506 he got the lands and barony of Leswalt ou the resignation of his brother Alexander Kennedy. He also had a charter, 28 January 1506-7 of the 4 merk land of Makbhardstown (Balvaird) in Carrick. He was created Earl of Cassilis between 22 and 24 October 1509. On the first date he is styled Lord Kennedy, and ou the second date Earl of Cassillis in the Sederunts of the Lords of Council. The reason of this elevation seems to be that he had just married his second wife, Margaret Boyd, widow of Alexander, fourth Lord Forbes, and daughter of Thomas Boyd, Earl of Arran, a niece of James III and a first cousin of James IV.
David, first Earl of Cassillis, fell at Flodden on 9 September 1513. He was twice married, his first wife being Agnes Borthwick, daughter of William, Lord Borthwick, who is named in the charter of 9 July 1489 above cited. He married, secondly, about 9 August 1509, Margaret Boyd, already named as widow of Alexander Lord Forbes. She survived the Earl, and had a dispute with her stepson Gilbert, second Earl, as to which she appealed on 9 February 1515-16.
From
The Complete Peerage2:
...knighted by James III 29 Jan. 1487/8; suc. his father as 3rd Lord Kennedy, in 1508, and was cr., 23 Oct. I509, Earl of Cassilis. He was P.C. to James IV, with whom he was slain at the fatal battle of Flodden.He m. istly, before July 1489, Agnes, 1st da. of William (Borthwick), 3rd Lord Borthwick. He m. 2ndly, about 9 Aug. 1509 (by dispensation), Margaret, widow of Alexander, Lord Forbes (who d. between 1488 and 1491), da. of Thomas (Boyd), Earl of Arran, by Mary, 1st da. of King James II. She, who was living as his widow, 9 Feb. 15 15/6, dsp. He d. as above mentioned, 9 Sep. 1513.
Footnotes
[1] The Scots Peerage, by Sir James Balfour Paul, Volume 2, Edinburgh (1905), pages 460-464
[2] The Complete Peerage, GE Cokayne, 2nd Edition, Volume 3 (Canonteign to Cutts), London (1913); Cassilis, pages 74-80