1292 in Ireland

Earl of Desmond is a title of nobility created by the English monarch in the peerage of Ireland. The title has been created four times. It was first awarded in 1329 to Maurice FitzGerald, 4th Baron Desmond, a Hiberno-Norman lord in Southwest Ireland, and it was held by his descendants until 1583 when they rose against the English crown in the Desmond Rebellions. Following two short-lived recreations of the title in the early 1600s, the title has been held since 1628 by the Feilding family of Warwickshire, England. The current holder is Alexander Feilding, 12th Earl of Denbigh and 11th Earl of Desmond.

The FitzGerald dynasty is a Hiberno-Norman noble and aristocratic dynasty, originally of Cambro-Norman and Anglo-Norman origin. They have been peers of Ireland since at least the 13th century, and are described in the Annals of the Four Masters as having become "more Irish than the Irish themselves" or Gaels, due to assimilation with the native Gaelic aristocratic and popular culture. The dynasty has also been referred to as the Geraldines and Ireland's largest landowners. They achieved power through colonisation and the conquest of large swathes of Irish territory by the sons and grandsons of Gerald de Windsor. Gerald de Windsor was the first Castellan of Pembroke Castle in Wales, and became the male progenitor of the FitzMaurice and FitzGerald Dynasty. His father, Baron Walter FitzOther, was the first Constable and Governor of Windsor Castle for William the Conqueror, and was the Lord of 38 manors in England, making the FitzGeralds one of the "service families" on whom the King relied for his survival. Some of its members became the Black Knights, Green Knights and White Knights.

The Desmond Rebellions occurred in 1569–1573 and 1579–1583 in the Irish province of Munster. They were rebellions by the Earl of Desmond, the head of the FitzGerald dynasty in Munster, and his followers, the Geraldines and their allies, against the threat of the extension of the English government over the province. The rebellions were motivated primarily by the desire to maintain the independence of feudal lords from their monarch but also had an element of religious antagonism between Catholic Geraldines and the Protestant English state. They culminated in the destruction of the Desmond dynasty and the plantation or colonisation of Munster with English Protestant settlers. 'Desmond' is the Anglicisation of the Irish Deasmumhain, meaning 'South Munster'.

Thomas Butler, 10th Earl of Ormond and 3rd Earl of OssoryPC (Ire), was an influential courtier in London at the court of Elizabeth I. He was Lord Treasurer of Ireland from 1559 to his death. He fought for the crown in the Rough Wooing, the Desmond Rebellions, and Tyrone's Rebellion. He fought his rival, Gerald FitzGerald, 14th Earl of Desmond in the Battle of Affane in 1565.

Gerald FitzGerald, 14th Earl of Desmond, also counted as 15th or 16th, owned large part of the Irish province of Munster. In 1565 he fought the private Battle of Affane against his neighbours, the Butlers. After this, he was for some time detained in the Tower of London. Though the First Desmond Rebellion took place in his absence, he led the Second Desmond Rebellion from 1579 to his death and was therefore called the Rebel Earl. He was attainted in 1582 and went into hiding but was hunted down and killed.

Piers Butler, 8th Earl of Ormond, 1st Earl of Ossory also known as Red Piers, was from the Polestown branch of the Butler family of Ireland. In the succession crisis at the death of Thomas Butler, 7th Earl of Ormond he succeeded to the earldom as heir male, but lost the title in 1528 to Thomas Boleyn. He regained it after Boleyn's death in 1538.

Maurice FitzGerald, was Lord of Maynooth, Naas, and Llanstephan. He was a medieval Anglo-Norman baron and a major figure in the Norman Invasion of Ireland.

James fitz John FitzGerald, 13th Earl of Desmond, also counted as the 14th, ruled 22 years, the first 4 years as de facto earl until the death of James FitzGerald, de jure 12th Earl of Desmond, called Court Page, who was murdered by James fitz John's brother Maurice fitz John FitzGerald, called Totane. James fitz John FitzGerald maintained himself in power by skilful diplomacy, avoiding armed conflict and destruction. He was appointed Lord Treasurer of Ireland in 1547.

Thomas Fitzmaurice FitzGerald, 2nd Baron of Desmond, was the son of Maurice FitzJohn FitzGerald and grandson of John FitzThomas FitzGerald from whom he inherited the title.