Gylle de Burgh, was an Anglo-Irish

Anglo-Irish

Anglo-Irish was a term used primarily in the 19th and early 20th centuries to identify a privileged social class in Ireland, whose members were the descendants and successors of the Protestant Ascendancy, mostly belonging to the Church of Ireland, which was the established church of Ireland until...

 Lady

Lady

The word lady is a polite term for a woman, specifically the female equivalent to, or spouse of, a lord or gentleman, and in many contexts a term for any adult woman...

, (fl. 1332).

De Burgh was the only daughter of Sir William Liath de Burgh

William Liath de Burgh

-Background:De Burgh was a son of William Og de Burgh, who was killed at the Battle of Áth-an-Chip or Athankip in 1270, and a nephew of Walter de Burgh, 1st Earl of Ulster...

 (died 1323) and a sister of Sir Walter Liath de Burgh

Walter Liath de Burgh

Sir Walter Liath de Burgh, Anglo-Irish magnate, died February 1332.De Burgh was the eldest son of Sir William Liath de Burgh and Finola Ni Briain...

. Walter was captured and starved to death by his cousion, the Earl of Ulster

Earl of Ulster

The title of Earl of Ulster has been created several times in the Peerage of Ireland and Peerage of the United Kingdom. Currently, the title is a subsidiary title of the Duke of Gloucester, and is used as a courtesy title by the Duke's son, Alexander Windsor, Earl of Ulster...

, in 1332.

Gylle, married to Richard de Manderville, had her husband and his family kill the earl at Carrickfergus

Carrickfergus

Carrickfergus , known locally and colloquially as "Carrick", is a large town in County Antrim, Northern Ireland. It is located on the north shore of Belfast Lough, from Belfast. The town had a population of 27,201 at the 2001 Census and takes its name from Fergus Mór mac Eirc, the 6th century king...

 on 6 June 1333 in revenge. This murder was directly responsible for the destruction of the great de Burgh lordship of Connacht

Connacht

Connacht , formerly anglicised as Connaught, is one of the Provinces of Ireland situated in the west of Ireland. In Ancient Ireland, it was one of the fifths ruled by a "king of over-kings" . Following the Norman invasion of Ireland, the ancient kingdoms were shired into a number of counties for...

, and the loss of Ulster to the Gaelic

Gaels

The Gaels or Goidels are speakers of one of the Goidelic Celtic languages: Irish, Scottish Gaelic, and Manx. Goidelic speech originated in Ireland and subsequently spread to western and northern Scotland and the Isle of Man....

-Irish till the Ulster Plantations of 1610.