John FitzGerald, de facto 12th Earl of Desmond

John FitzGerald, de facto 12th Earl of Desmond (died December 1536) was the brother of Thomas FitzGerald, 11th Earl of Desmond.[1] Upon his brother's death in 1534, John disputed the title to the earldom of his brother's grandson, James FitzGerald, de jure 12th Earl of Desmond.[2]

John FitzGerald
Earl of Desmond
Tenure	1534-1536
Predecessor	Thomas FitzGerald, 11th Earl of Desmond
Successor	James FitzGerald, de jure 12th Earl of Desmond
Died	December 1536
Nationality	Hiberno-Norman
Spouse(s)	Móre O'Brien
Parents	Thomas FitzJames FitzGerald Ellice de Barry

Ireland in 1450, showing the Earldom of Desmond

According to the Annals of the Four Masters, John FitzThomas FitzGerald was believed to have instigated the murder of his older brother, James FitzGerald, 8th Earl of Desmond in 1487, and had been expelled by his brother Maurice FitzGerald, 9th Earl of Desmond.[3]

John died in 1536.[4] His grandnephew, the de jure earl, died in 1540, and was succeeded by John's son, James FitzGerald, 14th Earl of Desmond.

Alfred Webb tells us of this earl that he, "being supported by a large faction, was de facto [12th] Earl. This Sir John died about Christmas 1536."[5]

Ancestors of John FitzGerald, de facto 12th Earl of Desmond

Maurice FitzGerald, 1st Earl of Desmond Gerald FitzGerald, 3rd Earl of Desmond Aveline fitz Nicholas James FitzGerald, 6th Earl of Desmond James Butler, 2nd Earl of Ormond Eleanor Butler Elizabeth Darcy Thomas FitzGerald, 7th Earl of Desmond Mary de Burgh John FitzGerald, de facto 12th Earl of Desmond David Barry, 6th Baron Barry John FitzDavid Barry, 7th Baron Barry Miles de Courcy, Baron Kinsale (d. 1344) Margaret de Courcy William Barry, 8th Baron Barry Gerald fitz Maurice, 3rd Earl Desmond Ellice FitzGerald Alianore Butler, Countess of Desmond Ellice de Barry Ellen de la Roche

References

1. Cokayne, George Edward, Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant. Volume III. London: George Bell & Sons. 1890. p. 86
2. Webb, Alfred. A Compendium of Irish Biography. Dublin: 1878.
3. Connellan, Owen. The Annals of Ireland [from A.D. 1171 to A.D. 1616, Dublin. Brian Geraghty, 1846, p. 309{{PD-notice))
4. Webb, Alfred. A Compendium of Irish Biography. Dublin: 1878.
5. Webb, Alfred. A Compendium of Irish Biography. Dublin: 1878.

Peerage of Ireland
Preceded by Thomas FitzThomas FitzGerald	Earl of Desmond 1534–1536	Succeeded by James FitzGerald, de jure 12th Earl of Desmond and James FitzGerald, 14th Earl of Desmond