He died before 20 December 1263 .
Walter de Clifford was born before 1190 , the son of Walter de Clifford ( died 1221 ) and Agnes Cundy ( de Condet ) .
Walter de Clifford died before 20 December 1263 .
Walter de Clifford was born before 1190 , the son of Walter de Clifford ( died 1221 ) and Agnes Cundy ( de Condet ) .