'Cosby1'Index links to: Lead / Letter
Families covered: Cosby of Cosby, Cosby (Cosbie) of Stradbally Hall

Robert Cosseby of Cossebye, Leicestershire
1. William Cossebye
  A. John Cossebye
  i. Robert Cossbye of Hermaston, Lincolnshire (a 1516)
  m. Isabel Pare (dau/heir of Ralph Pare of Great Leak by Isabel, dau/heir of John Blake of GHermaston)
a. John Cosbie
  m. Mable Agard of Foston
  (1) Richard Cosby of Great Leake
  (A) Bridget Cosby
  m. William Towers of Thunnocke
  (2) Francis Cosbie, Sheriff of co. Kildare (d Glendalough 1580, General of the Kern)
BLG1886, BLGI1912 & BIFR1976 all start with this Francis, his ancestry coming from Commoners. BLG1886 & BLGI1912 mention only his marriage to Elizabeth Palmes, indicating that she was the mother of his sons. We follow Commoners & BIFR1976, the former of which reports that Francis emigrated to Ireland following the downfall of his (first) father-in-law.
  m1. Mary Seymour (d 18.01.1570, dau of 1st Duke of Somerset, widow of Sir Henry Payton)
  (A) Alexander Cosbie of Stradbally Abbey (d Stradbally 19.05.1596)
  m. Dorcas Sydney (dau of William Sydney of Otford (grand-nephew of William Sydney of Cranleigh), m2. Sir Thomas Cooch or Zouche of Donnybarria)
  (i) Francis Cosbie of Stradbally Hall (b 01.01.1571, d Stradbally 19.05.1596, Captain)
  m. Helen Hartpole (dau of Robert Hartpole of Shrule, m2. Sir Thomas Loftus of Killyan)
  (a) William Cosby of Stradbally (b 16.03.1596, d 06.1596)
(ii) Richard Cosby of Stradbally Hall (d 1631, 4th son) - continued below
  m. Elizabeth Pigott (dau of Sir Robert Pigott of Dysart)
  (iii) Charles Cosby (b 12.09.1585, 6th son)
  m. _ Loftus (d 23.11.1632)
  (iv) Arnold Cosby of Drumaragh, co. Cavan (b 20.06.1591-4, 9th son)
  (a) William Cosby
  ((1)) Arnold Cosby of Lismore
  ((A)) Jane Cosby, heiress of Lismore
  m. (1713) Thomas Nesbitt (d 1750, MP)
  ((B)) Margaret Cosby apparently of this generation
  m. Robert Nesbitt (brother of Thomas)
  (v) Mabel Cosby (b 12.08.1598, d 1632)
  m. George Hartpole of Shrule (d 1632)
  (vi) Rose Cosby (b 02/20.11.1582)
  m. Hon. Richard St. Lawrence (d 21.03.1659)
  (vii)+ other issue (d young) - William (b 1573), John (b 1574), Humphrey (b 20.09.1581), John (b 04.08.1589), son, Elizabeth (b 08.09.1584), Edith (b 11.08.1588), Mary (b 16.07.15690)
  (B)+ other issue - Henry (dvp), Arnold (d 1590)
  m2. (1575) Elizabeth Palmes or Paulmes
  (D) Catherine Cosbie (dsp)
  m. Archibald Moor



Richard Cosby of Stradbally Hall (d 05.12.1631) - continued above
m. Elizabeth Pigott (d 1669, dau of Sir Robert Pigott of Dysart, m2. Barnaby O'Dunn of Brittas)
1. Alexander Cosby of Stradbally Hall (b 08.02.1610, d 06.08.1636)
  m. Anne Slingsby (dau of Sir Francis Slingsby of Kilmore)
  A. Francis Cosby of Stradbally Hall (dsp before 08.02.1638)
2. Richard Cosby (d unm)
3. Francis Cosby of Stradbally Hall (b 05.07.1612)
  m. Anne Loftus (d 1673, dau of Sir Thomas Loftus of Killian, Constable of Wicklow)
  A. Alexander Cosby of Stradbally Hall (d 1694) the first mentioned by BE1883
  m. Elizabeth L'Estrange (d 1692, dau of Henry L'Estrange of Moystown)
i. Dudley Cosby of Stradbally Hall (d 24.05.1729, Lt. Colonel)
  m1. Ann Owen (dsp 21.08.1698, dau of Sir Andrew Owen)
  m2. Sarah Pole (dau of Periam Pole of Ballyfin by Anne, dau of Henry Colley of Castle Carbery
  a. Pole Cosby of Stradbally Hall (d 20.05.1766)
  m. Mary Dodwell (d 09.01.1742, dau/coheir of Henry Dodwell of Manor Dodwell)
  (1) Dudley Alexander Sydney Cosby of Stradbally Hall, Baron Sydney of Leiz (dsp 17.01.1774)
  m. (12.1773) Isabella St. Lawrence (dau of Thomas, 1st Earl of Howth)
  (2) Sarah Cosby (b 1730)
  m1. Arthur Upton of Castle Upton (dsp 1768)
  m2. (01.12.1771) Robert Maxwell, Earl of Farnham (d 11.11.1779)
  b. Sarah Cosby
  m. (1732) Robert Meredith of Shrowland
  ii. Henry Cosby (d 1715, Captain, 3rd son)
  m. _ Higgins
  iii. Thomas Cosby (d 05.1735, Major)
  m. Jane Loftus (d 03.03.1734, dau of Henry Loftus, sister of Nicholas, Viscount Loftus of Ely)
  a. Anne Cosby
  m. Charles Davis or Davies
  b. Jane Cosby
  iv. Alexander Cosby, Deputy Governor of Nova Scotia (d 26.12.1743, Lt. Colonel, 9th son)
  m. Anne Winnard (dau of Alexander Winnard of Annapolis)
a. William Cosby (dsp 1748, Captain)
  b. Phillips Cosby of Stradbally Hall (dsp, Admiral RN)
  m. (08.1792) Eliza Gunthorpe (dau of W. Gunthorpe, sister of W. of Southampton)
  c. Elizabeth Cosby
  m. _ Foye (Captain)
d. Mary Cosby
  m. Charles Cotterel (Captain)
  v. William Cosby, Governor of New York and the Jerseys (d 10.03.1736, Brigadier General)
  m. Grace Montague (d 25.12.1767, sister of George Montague, Earl of Halifax)
  a. Elizabeth Cosby
  m. Augustus Fitzroy (son of Charles, Duke of Grafton)
  b. Grace Cosby
m. _ Murray of New York
  c.+ other issue - William, Henry (d 1753, Captain RN)
  vi. Anne Cosby
  m. William Wall of Coolnamuck
  vii. Elizabeth Cosby (d 24.01.1739)
  m. Richard Phillips, Governor of Nova Scotia (Lt. General) (b c1651, d 1752)
  viii. Dorcas Cosby
  m. _ Forbes
ix. Celia Cosby
  m. William Weldon of Rosscumro
  x. Jane Cosby (b 1661) who appears to have married ...
  m1. _ Wellington
  m2. Christopher Lovett of Dublin (d 1762)
  xi.+ other issue - Francis (d young), Loftus (d 03.01.1726, Captain), Seymer (d young), Sydney (d young), Harpole (d young), Arnold (d young), Jane (b 1661), Isabella, Dorothy
  B. Thomas Cosby of Vicarstown (d 1713)
  m. Anne Smith (dau of Sir William Smith)
  i. Francis Cosby of Vicarstown
  m. Anne Pigot (d 30.03.1783, dau of John Pigott of Kilfinny)
  a. Thomas Cosby of Vicarstown (b 1742, d 10.12.1788)
  m. Frances Booker (d 06.1770)
  (1) Thomas Cosby of Vicarstown, later of Stradbally (d 10.12.1798, 4th son)
  m. Grace Johnstone (dau/coheir of George Johnstone of Glaslough)
  (A) Thomas Cosby of Stradbally Hall, Sheriff of Queen's County (d 22.01.1832, 3rd son) had issue
  m. (08.1802) Charlotte Elizabeth Kelly (dau of Lord Chief Justice Thomas Kelly)
  (B)+ other issue (dvp) - Dudley Sydney (d 03.07.1787), Francis (d 25.08.1791)
  (2) Ann Cosby
  m. (03.1764) John Ward
  (3) Elinor Cosby
  m1. (04.1774) Bernard Ward of Ballysider
  m2. William Sidney
  (4)+ 3 sons (dsp)
  b.+ other issue - Francis (d 1776), Frances, Anne
  C. Sydney Cosby of Ballymanus (d 1716)
  m. Sarah Harding
  i. Francis Cosby of Polesbridge (d 1763)
  m. _ Pigot
  a. Sydney Cosby
  m. Henrietta Hughes (dau of Henry Hughes of Forte)
ii. Arthur Cosby of Ratherea (b 1705)
  m. Anne Bowen
  a. Anne Cosby
  m. _ Clarke
  iii. Anne Cosby
  m. Colclough Fitzgerald of Ballyrider
4. Sydney Cosby of Ballymanus (b 02.10.1613)
  m. _ Segar or St. Ledger (d 11.07.1663)
5. William Cosby (d 13.09.1683, Captain)
  m. Jane Stafford
  A. Richard Cosby 'of Dysart' (d 1730)
  m. Thomasine Brereton (dau of Francis Brereton)
  i. William Cosby (Captain)
6. Dorcas Cosby
  m. Adam (not William) Loftus of Ballymanus

Main source(s): Commoners (vol 3, Cosby of Stradbally), BLG1886 (Cosby of Stradbally), BLGI1912 (Cosby of Stradbally), BIFR1976 (Cosby) with a little support from BE1883 (Cosby, Baron Sydney)
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