Richard I Sanspeur

↓→ Richard I Sanspeur B in Normandy, France D in Fecamp, S-Infr, France	↓→ William I Longsword B in , Normandy, France D in , , France M	↓→ Rollo B in , , Norway D M	↓→ Ragnvald Eysteinsson B in , , Norway D in Orkney, Orkney Islands, Scotland M
			↓→ Hiltrude Hrolfsson B in , , Norway D
		↓→ Poppa de Bayeux B D	↓→ Berenger de Bayeux B D M

	↓→ Luitgarde de Vermandois B in Vermandois, Normandy, France D	↓→ Heribert Ii de Vermandois B in Vermandois, Normandy, France D M	↓→ Heribert I de Vermandois B in Vermandois, Normandy, France D M
			↓→ Bertha de Morvais B D
		↓→ Hildebrante B D	↓→ Robert I B in , , France D M
			↓→ Beatrix de Vermandois B in Vermandois, Normandy, France D