Thurstan (Toussaint) Bastembourg de MONTFORT 
Thurstan (Toussaint) Bastembourg de was born about 0942 in Bastembourg, Normandy, France. Thurstan (Toussaint) Bastembourg de's father was Anslec de BERTRAND. He was an only child. He died about 1023 in Montfort-sur-Risle, Eure, Montfort.
He had a biological daughter named Gisele de.
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Children
Gisele de MONTFORT
Gisele de was born about 0970 in Montfort-sur-Risle, Eure, Normandy, France. Gisele de is no longer alive.