My wife's ancestors - de Burgh - Contents

de Burgh, Earl of Ulster

• References:
  • ULSTER in [Complete Peerage]
  • DE BURGH in [Burkes Irish, 1958]
  • DE BURGH in [Burkes Irish, 1976]

  • SLIGO in [Burkes Peerage]
  • MAYO in [Burkes Peerage]

There was a claim that William de Burgh descends from Robert de Burgo, half-brother of William the Conqueror.
But ULSTER in [Complete Peerage] disproves this.

William de Burgh,
Anglo-Norman, born c.1160,
arrived in Ireland 1185 (a few years after the Anglo-Norman invasion of 1169),
said to have mar a dau of Domnall Mor O'Brien, King of Thomond [descendant of Brian Boru],
granted Connacht in 1196, but the Normans did not yet control it on the ground,
made Lord of Connacht,
died winter 1205/1206, age c.45 yrs,
had issue:

1. Richard Mor de Burgh, 1st Baron of Connacht (and here), born 1201.
   He launched Norman conquest of Connacht 1226. Took control of a large area. Returned to Dublin in 1228.
   Justiciar of Ireland 1228-1232.
   He mar Egidia de Lacy.
   He came to Galway 1230, but was repelled by the native Irish.
   He seized Galway Castle 1232. He re-built it as a stone castle in 1232.
   Lost Galway Castle to the Irish 1233. Re-took it in 1235.
   Conquest of Connacht complete 1235.
   He died on a campaign with Henry III in France, 17 February 1242 (new style year), age 41 yrs.
   Richard Mor and Egidia had issue:

   
   

   1. Walter de Burgh, 1st Earl of Ulster, born c.1231.

      
      

   2. William de Burgh.
      He is male-line ancestor of:
      1. Rev. Ulysses Burgh, Bishop of Ardagh,
         mar Mary Kingsmill [descendant of Edward I, see descent by Leo van de Pas],
         died 1692,
         had issue:
         1. Rev. Rickard Burgh, born 1666,
            had issue:
            1. Mary Burgh,
               mar 1710 to Rev. Thomas Lloyd [born 1690] and had issue.

         2. Thomas Burgh, born 1670,
            Surveyor General of Ireland.

      
      

   3. Margery de Burgh,
      mar Theobald Butler, 3rd Chief Butler of Ireland and had issue.

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The disproved story of descent from the half-brother of William the Conqueror

Walter de Burgh, Earl of Ulster, under ULSTER in [Complete Peerage].

Note (f) from the above, on the de Burgh ancestry.
It says William de Burgh is not the same as William FitzAldelm.

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• de Burgh by Peter Barns-Graham