Agatha of Lorraine
Coat-of-arms of the House of Lorraine
Born	c. 1120
Died	April 1147
Noble family	House of Lorraine
Spouse(s)	Reginald III, Count of Burgundy
Father	Simon I, Duke of Lorraine
Mother	Adelaide of Leuven

Agatha of Lorraine (c. 1120 – April 1147) was the wife of her relative Reginald III, Count of Burgundy.^[1][2] She was the daughter of Simon I, Duke of Lorraine^[3] and his wife Adelaide of Leuven.

Agatha's children with her husband included:

• Beatrice I, Countess of Burgundy^[4]
• Two other sons and three other daughters who died in childhood

She fell sick in March 1147 and died two weeks later.

• Poole, Austin Lane (1927). "England and Burgundy in the last decade of the twelfth century". In Davis, H.W.C. (ed.). Essays in History Presented to Reginald Lane Poole. Oxford at the Clarendon Press. pp. 261–273.