Sir William de Burgh, Knt., Lord Burgh, 4th Earl of Ulster

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Sir William de Burgh, Knt., Lord Burgh, 4th Earl of Ulster, son of John de Burgh and Elizabeth de Clare, was born 17 September 1312.1 He, was murdered at Le Ford (Belfast), Ireland, 6 June 1333.1

William married Maud of Lancaster, daughter of Sir Henry of Lancaster, Knt., Earl of Lancaster and Maud de Chaworth, before 16 November 1327.2


Maud of Lancaster b. bef. 1322, d. 5 May 1377
This person was last edited on22 Jun 2019


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five volumes (Salt Lake City, Utah: s.p., 2013), 2:22 (Burgh 7), further cited as Richardson, Royal Ancestry.
  2. [S1947] Richardson, Royal Ancestry, 2:16 (Burgh 5).