Guy IV de Laval was born circa 1135 to Guy III de Laval (-c1140) and Emma FitzRoy (c1110-c1157) and died circa 1182 of unspecified causes. He married Agathe . He married Emma de Dunstanville (c1143-c1190) . William I of England (1027-1087)/s.
|Offspring of Guy IV de Laval and Emma de Dunstanville (c1143-c1190)|
|Guy V de Laval (c1163-1210)||1163 Laval||1210||Havoise de Craon (1175-1251)|
|Sibylle de Laval (c1160-c1207)||1160 Laval||1207||Aimery VII de Thouars (c1152-1226)|