Lord Deputy of Ireland explained

The Lord Deputy was the representative of the monarch and head of the Irish executive under English rule, during the Lordship of Ireland and then the Kingdom of Ireland.^[1] He deputised prior to 1523 for the Viceroy of Ireland. The plural form is Lords Deputy.

List of Lords Deputy

Lordship of Ireland

Portrait or Arms	Name	Nationality	Term of office			Monarch
			Took office	Left office	Time in office
	Thomas de la Dale	English	1365	1366		Edward III
	Thomas Mortimer	English	1382	1383		Richard II
	Thomas FitzGerald, 7th Earl of Kildare	Anglo-Irish	1454	1459		Henry VI
	William Sherwood	English	1462	1462		Edward IV
	Thomas FitzGerald, 7th Earl of Desmond	Anglo-Irish	1463	1467
	John Tiptoft, 1st Earl of Worcester	English	1467	1468
	Thomas FitzGerald, 7th Earl of Kildare	Anglo-Irish	1468	1475
						Henry VI
						Edward IV
	William Sherwood	English	1475	1477
	Gerald FitzGerald, 8th Earl of Kildare	Anglo-Irish	1477	1477
	Henry Grey, 4th Baron Grey of Codnor	English	1478	1479
	Gerald FitzGerald, 8th Earl of Kildare	Anglo-Irish	1479	?1494
						Edward V
						Richard III
						Henry VII
	Walter Fitzsimon	Anglo-Irish	1492	1492
	Robert Preston, 1st Viscount Gormanston	Anglo-Irish	1493	1494
	Edward Poynings	English	1494	1496
	Gerald FitzGerald, 8th Earl of Kildare	Anglo-Irish	1496	1513
						Henry VIII
	Gerald FitzGerald, 9th Earl of Kildare	Anglo-Irish	1513	1518
	Sir Maurice Fitzgerald	Anglo-Irish					[2]
	Thomas Howard, Earl of Surrey	English	1520	1522			[3]
	Piers Butler, 8th Earl of Ormond	Anglo-Irish	1522	1524
	Gerald FitzGerald, 9th Earl of Kildare	Anglo-Irish	1524	1529
	William Skeffington	English	1529	1532
	Gerald FitzGerald, 9th Earl of Kildare	Anglo-Irish	1532	1534
	William Skeffington	English	1534	1535
	Leonard Grey, 1st Viscount Grane	English	1536	1540

Kingdom of Ireland

Portrait or Arms	Name	Nationality	Term of office			Monarch
			Took office	Left office	Time in office
	Anthony St Leger	English	1540	1548
						Edward VI
	Edward Bellingham	English	1548	1549
	Lord Justices		1549	1550
	Anthony St Leger	English	1550	1551
	James Croft	English	1551	1552
	Lord Justices (1552–1553)
	Anthony St Leger	English	1553	1556
						Mary I
	Thomas Radclyffe, 3rd Earl of Sussex	English	1556	1558			[4]
	Thomas Radclyffe, 3rd Earl of Sussex (as Lord Lieutenant)	English	1560	1564		Elizabeth I	[5]
	Nicholas Arnold	English	1564	1565
	Henry Sidney	English	1565	1571			[6]
	William FitzWilliam	English	1571	1575
	Henry Sidney	English	1575	1578			[7]
	Arthur Grey, 14th Baron Grey de Wilton	English	1580	1582
	John Perrot	Welsh	1584	1588
	William FitzWilliam	English	1588	1594
	William Russell, 1st Baron Russell of Thornhaugh	English	11 August 1594	1597			[8]
	Thomas Burgh, 3rd Baron Burgh	English	1597	1597
	Robert Devereux, 2nd Earl of Essex	English	1599	1599
	Charles Blount, 8th Baron Mountjoy (as Lord Lieutenant 1603–1604)	English	1600	1603
						James VI and I
	George Carey	English	1603	1604
	Arthur Chichester, 1st Baron Chichester	English	1605	1616			[9]
	Oliver St John, 1st Viscount Grandison	English	1616	1622	[10]
	Henry Cary, 1st Viscount Falkland	English	1622	1629
						Charles I
	Thomas Wentworth, 1st Earl of Strafford	English	1632	1640
	Christopher Wandesford	English	1640	1640
	Robert Sidney, 2nd Earl of Leicester (as Lord Lieutenant)	English	1640	1643
	James Butler, 1st Duke of Ormond (as Lord Lieutenant)	Anglo-Irish	1644	1650
	Henry Ireton	English	1650	1651
	Charles Fleetwood	English	1652	1657
	Henry Cromwell (as Lord Lieutenant 1658–1659)	English	1657	1658
	Edmund Ludlow	English	1659	1660
	George Monck, 1st Duke of Albemarle	English	1660	1661
	James Butler, 1st Duke of Ormond	Anglo-Irish	1662	1668
	Thomas Butler, 6th Earl of Ossory	Anglo-Irish	1668	1669
	John Robartes, 1st Earl of Radnor	English	1669	1670
	John Berkeley, 1st Baron Berkeley of Stratton		1670	1672
	Arthur Capell, 1st Earl of Essex	English	1672	1677
	James Butler, 1st Duke of Ormond	Anglo-Irish	1677	1682
	Richard Butler, 1st Earl of Arran	Anglo-Irish	1682	1684
	James Butler, 1st Duke of Ormond	Anglo-Irish	1684	1685
	Lords Justices		24 February 1685
	Henry Hyde, 2nd Earl of Clarendon	English	1685	1687
	Richard Talbot, 1st Earl of Tyrconnell	Irish	1687	1688

The title subsequently became Lord Lieutenant of Ireland, with the holder also known informally as the Viceroy.

Notes and References

1. Jan–Jun 1854 . Correspondence of Sylvanus Urban . The Gentleman's Journal . 41 . 49 . 2008-08-23 . Counsel's Fees . Printed by F. Jefferies . 31 March 2017 . https://web.archive.org/web/20170331032500/https://books.google.com/books?id=v_8IAAAAIAAJ&pg=PA49 . live .
2. The Chronological Historian
3. Creighton. Mandell. Howard, Thomas II (1473-1554). Howard, Thomas II (1473–1554). 28. 64–67.
4. Wagner, John, Historical Dictionary of the Elizabethan World, Oryx, 1999, p. 252
5. Wagner, John, Historical Dictionary of the Elizabethan World, Oryx, 1999, p. 252
6. Wagner, John, Historical Dictionary of the Elizabethan World, Oryx, 1999, p. 278
7. Wagner, John, Historical Dictionary of the Elizabethan World, Oryx, 1999, p. 278
8. Russell, William (1558?-1613). Dunlop. Robert. 49. 477.
9. Book: A New History of Ireland. 8: A Chronology of Irish History . Oxford University Press . 1989 . 978-0-19-821744-2 . Moody, T. W. . etal.
10. Cokayne, and others, The Complete Peerage, volume VI, page 74