Baron Rayleigh - Wikipedia
| Gerald de Windsor | Nest ferch Rhys | |||||||||||||||||||||
| Maurice FitzGerald (c. 1105–1176) Lord of Lanstephan | ||||||||||||||||||||||
| Baron Offaly, 1175 | ||||||||||||||||||||||
| Gerald FitzMaurice (c. 1150–1204) 1st Lord of Offaly | Thomas FitzMaurice (c. 1175–1213) Lord of O'Connelloe | |||||||||||||||||||||
| Maurice FitzGerald (1194–1257) 2nd Lord of Offaly | Earl of Desmond | |||||||||||||||||||||
| Maurice FitzGerald 3rd Lord of Offaly (1238–c. 1286) | Thomas FitzGerald (d. 1271) | |||||||||||||||||||||
| Earl of Kildare, 1316 | ||||||||||||||||||||||
| John FitzGerald (1250–1316) 1st Earl of Kildare, 4th Lord of Offaly | ||||||||||||||||||||||
| Thomas FitzGerald (d. 1328) 2nd Earl of Kildare | ||||||||||||||||||||||
| Richard FitzGerald (1317–1329) 3rd Earl of Kildare | Maurice FitzGerald (1318–1390) 4th Earl of Kildare | |||||||||||||||||||||
| Gerald FitzGerald (d. 1432) 5th Earl of Kildare | John FitzGerald (d. 1434) 6th Earl of Kildare | |||||||||||||||||||||
| Thomas FitzGerald (c. 1421–1478) 7th Earl of Kildare | ||||||||||||||||||||||
| Gerald FitzGerald (c. 1456–1513) 8th Earl of Kildare | ||||||||||||||||||||||
| Gerald FitzGerald (1487–1534) 9th Earl of Kildare | ||||||||||||||||||||||
| Earl of Kildare (2nd creation), 1554 Ancient earldom restored, 1569 | ||||||||||||||||||||||
| Thomas FitzGerald (1513–1537) 10th Earl of Kildare | Gerald FitzGerald (1525–1585) 1st & 11th Earl of Kildare | Edward FitzGerald (1528–1590) | ||||||||||||||||||||
| Kildare earldom (1st creation) forfeit, 1537 | ||||||||||||||||||||||
| Henry FitzGerald (1562–1597) 2nd & 12th Earl of Kildare | William FitzGerald (c. 1563–1599) 3rd & 13th Earl of Kildare | King James VI & I (1566–1625) | Gerald FitzGerald (d. 1612) 14th Earl of Kildare | Thomas FitzGerald (c. 1560–1619) | ||||||||||||||||||
| Elizabeth, Queen of Bohemia (1596–1662) | King Charles I (1600–1649) | Gerald FitzGerald (1611–1620) 15th Earl of Kildare | George FitzGerald (1612–1660) 16th Earl of Kildare | |||||||||||||||||||
| Charles Louis (1617–1680) Elector Palatine | King Charles II (1630–1685) | Wentworth FitzGerald (1634–1664) 17th Earl of Kildare | Robert FitzGerald (1638–1698) | |||||||||||||||||||
| Duke of Leinster (1st creation), 1691 | ||||||||||||||||||||||
| Meinhardt Schomberg (1641–1719) Duke of Leinster, Duke of Schomberg, Marquess of Harwich, Earl of Brentford, Earl of Bangor, Baron Tara, Count of Mértola (Portugal) | Raugravine Caroline Elisabeth (1659–1696) | Charles Lennox (1672–1723) Duke of Richmond | John FitzGerald (1661–1707) 18th Earl of Kildare | Robert FitzGerald (1675–1744) 19th Earl of Kildare | ||||||||||||||||||
| Dukedom of Leinster (1st creation) extinct, 1719 | ||||||||||||||||||||||
| Charles Schomberg (1683–1713) styled Marquess of Harwich | Charles Lennox (1701–1750) Duke of Richmond | |||||||||||||||||||||
| Viscount Leinster, of Taplow in the County of Buckingham, 1747 Marquess of Kildare, 1761 Duke of Leinster (2nd creation), 1766 | ||||||||||||||||||||||
| Emily Lennox (1731–1814) | James FitzGerald (1722–1773) 1st Duke of Leinster, 1st Marquess of Kildare, 20th Earl of Kildare, 1st Earl of Offaly, 1st Viscount Leinster, 1st Baron Offaly | |||||||||||||||||||||
| Baron Lecale | Baron Rayleigh | |||||||||||||||||||||
| George FitzGerald (1748–1765) styled Earl of Offaly | William Robert FitzGerald (1749–1804) 2nd Duke of Leinster, 2nd Marquess of Kildare, 21st Earl of Kildare, 2nd Earl of Offaly, 2nd Viscount Leinster, 2nd Baron Offaly | Charles James FitzGerald (1756–1810) Baron Lecale | Charlotte Strutt (1758–1836) 1st Baroness Rayleigh | |||||||||||||||||||
| Lecale barony extinct, 1810 | ||||||||||||||||||||||
| George FitzGerald (1783–1784) styled Marquess of Kildare | Augustus Frederick FitzGerald (1791–1874) 3rd Duke of Leinster, 3rd Marquess of Kildare, 22nd Earl of Kildare, 3rd Earl of Offaly, 3rd Viscount Leinster, 8th Baron Offaly | John James Strutt (1796–1873) 2nd Baron Rayleigh | ||||||||||||||||||||
| Baron Kildare, 1870 | ||||||||||||||||||||||
| Charles William FitzGerald (1819–1887) 4th Duke of Leinster, 4th Marquess of Kildare, 23rd Earl of Kildare, 4th Earl of Offaly, 4th Viscount Leinster, 9th Baron Offaly, 1st Baron Kildare | ||||||||||||||||||||||
| Gerald FitzGerald (1851–1893) 5th Duke of Leinster, 5th Marquess of Kildare, 24th Earl of Kildare, 5th Earl of Offaly, 5th Viscount Leinster, 10th Baron Offaly, 2nd Baron Kildare | John William Strutt (1842–1919) 3rd Baron Rayleigh | |||||||||||||||||||||
| Maurice FitzGerald (1887–1922) 6th Duke of Leinster, 6th Marquess of Kildare, 25th Earl of Kildare, 6th Earl of Offaly, 6th Viscount Leinster, 11th Baron Offaly, 3rd Baron Kildare | Lord Desmond FitzGerald (1888–1916) | Edward FitzGerald (1892–1976) 7th Duke of Leinster, 7th Marquess of Kildare, 26th Earl of Kildare, 7th Earl of Offaly, 7th Viscount Leinster, 12th Baron Offaly, 4th Baron Kildare | Robert John Strutt (1875–1947) 4th Baron Rayleigh | |||||||||||||||||||
| Gerald FitzGerald (1914–2004) 8th Duke of Leinster, 8th Marquess of Kildare, 27th Earl of Kildare, 8th Earl of Offaly, 8th Viscount Leinster, 13th Baron Offaly, 5th Baron Kildare | John Arthur Strutt (1908–1988) 5th Baron Rayleigh | |||||||||||||||||||||
| Maurice FitzGerald (b. 1948) 9th Duke of Leinster, 9th Marquess of Kildare, 28th Earl of Kildare, 9th Earl of Offaly, 9th Viscount Leinster, 14th Baron Offaly, 6th Baron Kildare | Lord John FitzGerald (1952–2015) | John Gerald Strutt (b. 1960) 6th Baron Rayleigh | ||||||||||||||||||||
| Thomas FitzGerald (1974–1997) styled Earl of Offaly | Edward FitzGerald (b. 1988) | John Frederick Strutt (b. 1993) | ||||||||||||||||||||
| Heir presumptive to the Leinster dukedom | Heir apparent to the Barony Rayleigh | |||||||||||||||||||||