Thomas Kennedy, 1st of Bargany, was included in the remainder of a charter to his father for the lands of Cassills dated 2 November 1404 and acquired the lands of Bargany, which he resigned in favour of his eldest son, Gilbert Kennedy, by procuratory dated 24 September 1454. He was included in the remainder of a charter for the office of Bailie of Carrick in favour of John Kennedy, son and heir of Gilbert Kennedy of Dunure, on 23 October 1455. He died in 1456/57 and was father of,
- Sir Gilbert Kennedy, 2nd of Bargany, (see below).
- David Kennedy,
- Thomas Kennedy,
- James Kennedy,
- Hugh Kennedy,
- John Kennedy of Knockreuch, in favour of whom his nephew, Thomas Kennedy of Bargany, conveyed the lands of Milwayne and Laganmys by charter dated 18 March 1499/1500.
Sir Gilbert Kennedy, 2nd of Bargany, in favour of whom his father made a resignation of the lands of Bargany on 24 September 1454, to himself and the heirs male of his body, which failing, to his brothers David, Thomas, James, Hugh and John respectively and seriatim. Succeeding his father, he paid the composition fees for his succession in 1457, and had been knighted by 20 May 1465, when he witnessed a Sasine in favour of Gilbert Kennedy of Coff. He resigned his lands of Penval into the hands of the superior, Gilbert, Lord Kennedy, on 14 May 1473 and d. after 18 September 1475 and before 20 May 1479. He was father of,
- Thomas Kennedy, 3rd of Bargany, (see below).
- Roland Kennedy, was included with his brother, Thomas Kennedy of Bargany, and Alexander and John, his nephews, in a charge against them on 9 April 1513, for the murder of George Kennedy, son and apparent heir of George Kennedy of Attiquhane.
Thomas Kennedy, 3rd of Bargany, succeeded his father by 20 May 1479, when he was infeft in the lands of Ardschinchareand had special service as heir to him in the lands of Sannas on 6 October 1484. He m. Katherine, daughter of John, 2nd Lord Kennedy, (c/m 15 September 1465), and d. in 1518 having had issue;
- Alexander Kennedy, 4th of Bargany, (see below).
- John Kennedy of Bardrochat, to whom his father conveyed those lands by charter dated 26 June 1515. He m. Elizabeth Graham had issue.
Alexander Kennedy, 4th of Bargany, succeeded his father and had Sasine for the lands of Bargany and others, as heir to him on 28 February 1519. He m. by 2 January 1502/03, to Mariote, daughter of Sir John Dunbar of Mochrum, when they had a conjunct charter from his father for the lands of Letterpyn and d. after 13 February 1543/44 and before 11 May 1546.He was father of,
- Thomas Kennedy, 5th of Bargany, (see below).
- Mr Gilbert Kennedy of Kirkhill, who as brother of the late Thomas Kennedy of Bargany and husband of Isabel Kennedy, had a precept for confirmation to them of the kirklands of Gallowtoun on 20 March 1573/74. He had issue, (see Kennedy of Kirkhill and Dunure).
- Hugh Kennedy, is included with his father and a number of their kinsmen and servants in a charge against them on 28 July 1528, for the murder of Robert Campbell in Lochfergus, Alexander Kirkwood and Patrick Wilson.
- Alexander Kennedy, was one of the bailies chosen by his brother, Thomas Kennedy of Bargany, to give Sasine to Janet Burn, relict of Laurence Urie in Cathcart, for the lands of Barchallane on 23 April 1554.
- Janet Kennedy, m. by 16 August 1559, to John Mure of Caldwell, (he had previously been married to Christian, daughter of Ninian, 3rd Lord Ross, but from whom he was divorced, and was killed by William Cunningham of Aiket on 10 September 1570), when she had a charter for the lands of Thornton from her brother, Thomas Kennedy of Bargany.
- Margaret Kennedy, m. firstly, to William Wallace of Craigie, and as relict of whom she had a grant of the ward and nonentries of his lands on 6 January 1537/38. She m. secondly, to Gilbert, 3rd Earl of Cassills, and had issue by both husbands.
- Elizabeth Kennedy, m. firstly, Sir John Kennedy of Culzean, by whom she was infeft in his lands of Culzean on 5 December 1538. Surviving that husband, she m. secondly, by 13 February 1541/42, to Hugh Kennedy.
- Mariote Kennedy, to whom, in her pure virginity, Thomas MacLellan of Bomby granted a liferent out of his lands of Bomby and for the confirmation of which a precept passed the Privy Seal on 16 November 1540.
He was also father of a natural son:
- Gilbert Kennedy, in favour of whom a precept for letters of legitimation passed the Privy Seal on 6 March 1553/54.
Thomas Kennedy, 5th of Bargany, succeeded his father and as heir of whom he was infeft in the lands of Ferdenreach on 27 September 1546. He m. firstly, to a daughter of Gilbert, Earl of Cassills, and in relation to which his father discharged that Earl on 17 July 1527, for £100 as ordained by Alexander’s late mother, Katherine Kennedy, in her latterwill, and which had been due by the terms of the marriage contract. That wife appears to have died shortly after then and before 2 March 1528, when, on that date, Thomas married Margaret, daughter of Sir Hugh Campbell of Loudoun, (c/m 12 February 1528). He d. before 10 October 1564 having had issue;
- Thomas Kennedy, 6th of Bargany, (see below)
- Hugh Kennedy of Bennan, m. Katherine, daughter and heiress of John Kennedy of Bennan, with whom he had a tack of those lands from her mother, Marion Kennedy, and step-father, James Colville, on 8 June 1560. He had issue.
- Katherine Kennedy, m. David Kennedy of Knockdaw, (c/m 16 January 1569/70.
Thomas Kennedy, 6th of Bargany, succeeded his father and as heir of whom he had Sasine for the lands of Bargany on 3 November 1564. He m. Agnes, sister of Hugh Montgomery, 2nd Earl of Eglinton, (c/m 12 January 1555. She survived him and had her liferent of the lands of Bargany reserved to her on 1 May 1598), and d. in 1597. He was father of,
- Alexander Kennedy, younger of Bargany, the eldest son, is styled “apparent of Bargany” when witness to several writs including those dated 12 May 1588 and 20 September 1591. He m. on 21 June 1588, to Margaret, daughter of Sir John Gordon of Lochinver, but was passed over in succession in favour of his immediate younger brother Gilbert, however, the reasons for that are not now known.
- Gilbert Kennedy, 7th of Bargany, (see below).
- Thomas Kennedy of Drummurchie, was a substitute heir to his brother Gilbert in a charter to him and their father for the kirklands of Maybole on 9 April 1596. He m. Dorothy Stewart, who survived him and had a charter for the lands of Milnton of Glenassil and others from Thomas Kennedy of Bargany in which she is styled relict of the deceased Thomas Kennedy of Drummurchie.
- Helen Kennedy, m. firstly, to Hugh Montgomery, 4th Earl of Eglinton, (he was killed on 18 April 1586 in a feud with various Cunninghams), and surviving him, she m. secondly, to John Graham of Knockdolian, (c/m 8 May 1590). Also surviving that husband, she m. thirdly, by November 1605, to Alexander Kennedy, son of Hugh Kennedy in Craigneill.
- Isabel Kennedy, m. Alan, Master of Cathcart, (c/m 9 February 1593), and had issue.
- Janet Kennedy, m. firstly, to Adam Boyd, 2nd of Penkill, (he d. on 1 July 1596, aged 39 years), and surviving him, she m.secondly, by 24 February 1614, to Thomas Hay, younger of Park.
- Margaret Kennedy, m. John Mure of Auchindrain and surviving him, she had a liferent of the lands of Culroy and others, reserved to her on 2 April 1632.
He was also father of a natural son;
- Roland Kennedy, is so-styled when a witness with his half-brother, Alexander Kennedy, younger of Bargany, to a Sasine in favour of Adam Boyd for the lands of Pymount dated 12 May 1588.
Gilbert Kennedy, 7th of Bargany, succeeded his father and was infeft in the lands of Bargany as heir to him by Sasine dated 10 May 1598. He m. Jean, sister of Andrew Stewart, Lord Ochiltree, (c/m at Holyrood House, on 9 January 1596), and was killed at Brookloch Burn on 11 December 1601, during a feud with Gilbert, Earl of Cassills. He had issue;
- Thomas Kennedy, 8th of Bargany, (see below).
- Helen Kennedy, m. Hugh Kennedy, eldest son and apparent heir of Hugh Kennedy of Girvan Mains, (c/m 24 September 1617).
Thomas Kennedy, 8th of Bargany, succeeded his father but being an infant at that time, his ward and the nonentries of his lands were gifted to his mother on 14 January 1602. He m. Margaret, daughter of Josias Stewart of Bonnytoun, (c/m 18 November 1618), but the marriage was not a happy one, and on 26 October 1619, he revoked all charters, contracts and bonds he had granted to her owing to their having caused his “utter wrak and skaith”. His financial difficulties not improving, he was pursued by various parties including his father-in-law, until eventually becoming compelled to dispone his estate to Sir Alexander Kennedy in 1621. He was father of,
- Thomas Kennedy,
- James Kennedy, both of whom are included with their mother in an inhibition by their maternal grandfather, Josias Stewart, against their father dated 30 October 1619.
 Ex. Rolls. Vol. 6, p. 343.
 Pitcairn, Vol. 1, p. 86.
 Culzean charters, No. 91.
 Ex. Rolls. Vol. 14, pp. 617-618. They had been in nonentry for one year.
 Pitcairn, Vol. 1, p. 138.
 Protocol Book of Gavin Ross, Nos. 923-924 & 931.
 Protocol Book of Gavin Ross, No. 849.
 Ex. Rolls. Vol. 23, pp. 406-408. He is generally accepted to have survived that wife and to have married again to Isobel Stewart of Ochiltree but evidence proving Agnes Montgomery survived him being extant, that cannot be correct.
 See GD1/26/28 & GD3/1/1/1/7.
 Earlston MS.
 C3/1/346. See also: GD220/1/B/1/5/1. She had previously been contracted to marry him in 1583, but she had married, instead, to the Earl of Eglinton.