Constance married, 1stly, Geoffrey, 4th son of HENRY II, by ELEANOR of Aquitaine, born 23 September 1158; on his marriage in 1181 he was recognised as DUKE OF BRITTANY and EARL OF RICHMOND; he had previously in May 1169 received the homage of the Breton barons at Rennes. He left England for Brittany in 1179, and the only later occasion on which he seems to have been in England was in 1184, the probable date of a charter which he executed at Winchester confirming to Kirkstead Abbey land in Gayton le Wold, Lincs, which Duke Conan had given. On 30 March 1184 at Rennes he confirmed an agreement between the priory of St. Cyr and Geoffrey de la Guerche. At Rennes in 1185, in conjunction with Constance, he issued his celebrated assize regulating the succession to lands in Brittany held by barony or military tenure, and at Nantes in 1186 a charter for the abbey of Buzay. He was killed in a tournament at Paris on 19 August 1186, and buried in the quire of the cathedral there. [Complete Peerage X:794-7, (transcribed by Dave Utzinger)]