Robert of Torigny records the death in 1173 of "Rogerius comes de Clara" and the succession of "Ricardus filius eius".
He succeeded his father as Earl of Hertford. He sided with the Barons against King John, and played a leading part in the negotiations for Magna Carta. 1
RICHARD [DE CLARE] Lord of Clare, Earl of Hertford, also lord of Clare, &c., son and heir. he married Amice, daughter and in her issue heir, of William [FitzRobert], EARL OF GLOUCESTER. He died November 1217. 2
RICHARD (DE CLARE), EARL OF HERTFORD, but, like his father and uncle, more generally known as EARL OF CLARE, son and heir, had a grant of a moiety of the Giffard estates. He was present at the coronation of Richard I at Westminster, 3 September 1189. In 1191 he was one of the eleven appointed by the Chancellor to determine (with eleven chosen on the part of Prince John) the questions between them. In 1193 he was enjoined (with others) by the Chancellor to accompany him on his return to the King, then a prisoner in Germany. He had acquittance in 11i94/5 as being with the King in the army in Normandy. On the accession of King John in 1199 he was one of those of whom Archbishop Hubert and the partisans of the King entertained most doubt, and he received a summons to Northampton, where an oath was taken that King John would restore to every man his right, if they would keep peace with him, and they swore accordingly. He was present at the coronation of King John at Westminster, 27 May 1199, and at the homage of William, King of Scotland, at Lincoln. He sided,with the Barons against King John, and his castle of Tonbridge was taken. He played a leading part in the negotiations for Magna Carta, and was one of the 25 Barons guardians thereof. On 9 Nov. 1215 he was one of the commissioners on the part of the Barons to treat of peace with the King. On 4 March 1215/6 his lands in cos. Cambridge, Norfolk-, Suffolk and Essex were granted to Robert de Betun, and, soon after his lands in other counties; and he and his son were among the Btrons excommunicated by Pope Innocent III in 1216.
He married Amice, 2nd daughter and coheir and eventually sole heir of William (FITZROBERT), EARL OF GLOUCESTER, by Hawise, daughter of Robert (DE BEAUMONT), EARL OF LEICESTER. They appear to have been separated (perhaps pending a dispensation) prior to 1200. He died between 30 October and 28 November 1217. She is stated to have died 1 January 1224/5, before which date she appears to have been recognised as Countess of Gloucester. 3
Richard de Clare, 4th Earl of Hertford, who in the 7th Richard I gave £1,000 to the king for livery of the lands of his mother's inheritance with his proportion of those sometime belonging to Giffard, Earl of Buckingham. His lordship m. Amicia, 2nd dau. and co-heiress (with her sisters Mabell, wife of the Earl of Evereux, in Normandy, and Isabel, the divorced wife of King John) of William, Earl of Gloucester, by whom he had issue, Gilbert, his successor, and Joan, m. to Rhys-Grig, Prince of South Wales. This earl, who was one of the twenty-five barons appointed to enforce Magna Carta, d. in 1218, and was s. by his son, Gilbert de Clare, 5th Earl of Hertford. 4