Research Notes:
Rosie Beven states, [1]
1. Ralph de Lathbury Ralph Lathbury, chamberlain of Ralph Pipard. His wife was Margaret who quitclaimed her dower in favour of Matilda daughter of John Giffard of Chillington. Margaret was dead bef. 6 March 1324 (date of Writ) when Ralph, son of Ralph Lathbury, aged 16 and more was her next heir [CIPM 6 no. 498].
2. Ralph, son and heir of Ralph, occ.1304-7, dcd.1325, m. Margaret (fl.1304-25). John Giffard of Chillington bought the wardship and marriage of Ralph, son of Ralph Lathbury in 1315 from Ralph de Freschville (Wolley, ix, 31,32). Ralph's wife Margaret (D5236/6/5) was probably a daughter of John Giffard. Ralph was dead by 22 June 1326 (date of writ) when his IPM recorded that Robert his brother was his next heir aged 15 and more [CIPM 6 no. 656]
3. Robert de L, occ.1318-50, dcd.1376, m. Ermentrude dau.(coheiress) of Sir Alured de Sulney. She was remarried to John Foucher by 1376 and was still alive in 1395. Foucher died betwen 1383-90. (Ermentrude's mother was the daughter of Sir John Trussell of Cublesdon and his wife Eleanor. Owing to a male entail placed on the Trussell estates, John's brother William was his next heir.)
4. Sir Alured de Lathbury, son of Robert and Ermentrude, occ.1383-1428, kt by 1394. m (1) Ala or Ada (fl.1395-1404) dau and h. of Ralph de Cadeby acc. to Nichols, v.4 pt 2); (2) Margery, by 1424. The date of the fine (D5236/4/35) between Sir Alured de Lathbury and Ala his wife and John Lathbury and Elizabeth his wife, is incorrectly given as 1427. This fine occurred in 6 Hen IV (1406) not 6 Hen VI [Garratt, Derbyshire Feet of Fines, 1323-1546].
5. John Lathbury, son of Alured and Ala, occ.1399-1423, dcd.1424 vp, m. (1) Joan dau Henry Par; annulled 1399, as she had had children by a servant of Sir Alured's before John was of marriageable age (obviously quite a story there); (2) Elizabeth, dcd.1423. This John clearly died during the lifetime of his father before 1425. His wife Elizabeth was dead by 1423 (D5236/3/62).
6.John, son of John L, heir to grandfather, occ.1427-66, m.(1) Elizabeth (fl.1427); (2)1439, Isabella Shatton This John is described as John senior in 1453 (D5236/3/78) and 1466 (D5236/4/41), which means his son occurs as an adult during this time. His wife Elizabeth occurs in 1430 (D5236/3/67).
7. John, son of John and Elizabeth, b.post 1425, occ.1439-1505, m.(1?)post 1439 Katherine, dau. of his stepmother Isabella Shatton; m.(2?) Elizabeth, living as his widow in 1512. [In the event of Katherine's death before the age of 14 he was to marry one of her sisters, so there is always the possibility that this Elizabeth was his only wife, or even that there was another John in the pedigree here.] John described as junior in 1439, 1453 and 1466
8. Alured/Avery Lathbury, s.& h. of John, dcd.1489 vp, m. Joan who m.(2) by 1489 Nicholas Meverell. Joan was dau.and h. of Richard Norman (C 1/334/22).
9. Ann, heiress to grandfather John L of Eggington and half Newton Solney, betrothed 1489 to William s.& h. Richard Littleton; she m. by 1508 Robert Leigh of Whitfield, Glossop (etc.). Robert died 28 Feb 1525 (Nicholls, ibid).
Sir John Giffard married twice: [Wikipedia]
Jane Horde or Hoord was his first wife. She was the daughter of Thomas Horde of Horde Park, just north of Bridgnorth, Shropshire. They married in 1483 and she died in childbirth, on 8 December 1491, having borne 7 daughters and 2 sons, including Thomas Giffard, Sir John's heir, and Cassandra Giffard, who married Humphrey Swynnerton. Most of the children seem to have died at birth or while still young.
Elizabeth Montgomery, daughter of Sir Thomas Gresley of Colton, Staffordshire, was his second wife. The date of the marriage is uncertain but was by April 1515, when Giffard got into trouble with Henry VIII for marrying without permission. Elizabeth was the widow of Sir John Montgomery of Cubley, Derbyshire. She and Giffard had 4 sons and a daughter.
[1] Newsgroup Post, soc.genealogy.medieval, Rosie Bevan, August 20, 2005, "Lathbury of Eggington (was Maud Furnival...)", [GoogleGroups_SGM].