Roger de Clare (1116–1173) was Earl of Hertford from 1153 until his death.
Roger was a son of Richard Fitz Gilbert de Clare and Alice de Gernon. He succeeded to the earldom when his brother Gilbert died without issue. In 1164 he assisted with the Constitutions of Clarendon. From his munificence to the Church and his numerous acts of piety, Roger was called the "Good Earl of Hertford".[a] He was the founder of Little Marcis Nunnery prior to 1163.
Roger married Maud de St. Hilary, daughter of James de St. Hilary and Aveline. Together they had seven children:
Mabel de Clare, d. 1204, m. (c. 1175), Nigel de Mowbray.
Richard de Clare, b. c. 1153, Tonbridge Castle, Kent, England, d. 28 November 1217, 3rd Earl of Hertford
James de Clare
Eveline (Aveline) de Clare, d. 4 June 1225, m.  (c. 1204), Geoffrey IV Fitz Piers (Fitz Peter), 1st Earl of Essex. m.  Sir William Munchensy, (b. c. 1184), son of Warin de Munchensy and Agnes Fitz John.
Roger de Clare, d. 1241, Middleton, Norfolk, England.
John de Clare
Henry de Clare