Gerlach III. v.Isenburg		Siegfried II. v.Mörle und Kleeberg	Euphemia v.Staden?
Heinrich I. v.Isenburg-Grensau		Irmgard v.Mörle?

Heinrich II. v.Isenburg-Grenzau*v.1213, +n.1251/1260/1263

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Do you see errors?/Do you have hints?