Osborne Fitz Tesson, b: 1044 -

^{Raoul Taisson}^{b.1000
d.1030}

^{Raoul Taisson}^{b.1025 Normandy, France
d.1066 Battle of Hasting, England}

^{Matilda daughter of Walter}^{b.
d.}

^{Osborne Fitz Tesson}^{b.1044
d.1119}

^{Hugh Fitz Osborne}^{b.1070
d.1124}