Marriage and issue
Aungier was married three times, and had several children through his marriages.
He married first, on 12 August 1584 at Rushbrooke, West Suffolk, to Douglas Fitzgerald ("Douglas Garret"), (died 1600), sister of the future 14th Earl of Kildare. The East Clandon register, recording her burial there on 1 June 1600, describes her as "mulier pietate, virtute et stemmate honoris florens", a woman flowering in piety, virtue and honourable descent. (Sir Ambrose Copinger (died 1604), of Dawley Court, Middlesex, a grandson of Sir Thomas Jermyn of Rushbrooke, had married Douglas's sister Lettice FitzGerald weeks previously. The names Lettice and Ambrose derived from this example, as the East Clandon register shows.) They had issue:
Elizabeth Aungier (baptized 12 December 1585). She married (1) in January 1607/08, to Simon Caryll (c. 1577-1619), son of John Caryll and Lettice Lane, (2) in February 1619/20, to Richard Barne, son of Sir George Barne (died 1593) and Anne Gerrard, and (3) in February 1624/25, to John Machell (c. 1580-1647), (son of Mathew Machell and Mary Lewknor) of Great Tangley, Shalford, Surrey. Elizabeth died in 1650.
Lettice Aungier (baptized 25 May 1591), who married (1) Edward Cherry of Dublin, son and heir of Sir Francis Cherry, (2) Sir William Danvers, and (3) Sir Henry Holcroft, Secretary for the Irish Causes. She was living in 1639, when addressed in a printed funeral sermon for her niece, and apparently so in 1649 when Holcroft made his will, of which she was an executor.
Frances Aungier (baptized 2 November 1592, buried 11 November 1604), daughter.
Gerald Aungier, 2nd Baron Aungier of Longford ("Garret"), (baptized 23 March 1594/95), heir, died 1655, who married in February 1637/38 to Jane, daughter of Sir Edward Onslow and Elizabeth Shirley, and relict of Sir Edward Carr of Hillingdon. Gerald was an accomplished student of antique and oriental languages, and both a patron and student of his near kinsman William Oughtred, who wrote very highly of him.
Ambrose Aungier (baptized 12 September 1596), of Westminster School, Trinity College and Clare College, Cambridge. He became Chancellor of St. Patrick's Cathedral, and married Grisel Bulkeley, daughter of the Archbishop of Dublin, Lancelot Bulkeley. He was the father of Francis Aungier, 1st Earl of Longford (c. 1632-1700), Gerald Aungier the first Governor of Bombay (c. 1640-1677), and Ambrose Aungier, 2nd Earl of Longford (c. 1649-1704). Ambrose Aungier died in 1654.
Thomas Aungier (baptized 27 November 1597). He died 5 May 1626.
He married secondly Anne Barne, daughter of Sir George Barne (died 1593) and Anne Garrard, and relict of Walter Marler, citizen and Salter of London, and had issue:
George Aungier, living in 1628 (third of the four sons named in Lord Aungier's will, written 1628).
John Aungier (baptized 7 July 1605, buried 24 February 1606/07).
Francis Aungier (baptized 3 August 1607), son, of Clare College, Cambridge (1622), and Gray's Inn: he died in 1652.
Robert Aungier (baptized 6 April 1609).
He married thirdly Margaret Cave, daughter of Sir Thomas Cave (died 1613) of Stanford Hall and Eleanor St. John. Margaret Cave married first, Sir John Wynn (eldest son of Sir John Wynn, 1st Baronet), who died 1614; second Sir Francis Aungier (died 1632); and third Sir Thomas Wenman of Dublin, provost-marshal of Munster. They had no issue.