Richard Og de Burgh, also known as Richard de Burgh , was the 2nd Earl of Ulster, 3rd Lord of Connacht . Born about 1259, died 1326. His name, "Richard Og" meant Richard the Young, probably a reference to his youth when he became earl in 1271. He was also known as the Red Earl.

Richard Og was the most powerful of the de Burgh Earls of Ulster. He was a friend of King Edward I of England, and ranked first among the Earls of Ireland. Richard's wife Marguerite de Guines was the cousin of King Edward's queen. He pursued expansionist policies that often left him at odds with fellow Ango-Irish lords; he sucessfully defeated the King of Connacht , Felim O'Conor, at the Second Battle of Athenry in 1316.

His sister, Egidia de Burgh , was wife of James the Stewart of Scotland. His second son, John de Burgh , was husband to Elizabeth de Clare, a granddaughter of Edward I. Of his daughters, Catherine married the Earl of Desmond; Joan married the Earl of Kildare; Avelina married John fitz Peter de Bermingham ; Matilda married Gilbert de Clare, 8th Earl of Gloucester ; and Elizabeth married Robert the Bruce, later Robert I of Scotland. His son John died in 1313, leaving the succession to his infant son, William.

Source: "Burke People and Places", Eamonn Burke, Dublin, 1995.