Adalbert III Seigneur de Grandson 
He had a biological son named I, Seigneur de Grandson.
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Personal Details
Adalbert III Seigneur de Grandson
Adalbert III Seigneur was born in 1030 in Neuchatel,SWITZERLAND. He died at the age of 56 in 1086.
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Children
I, Seigneur de Grandson Conan
I, Seigneur de Grandson was born in 1050 in LaSarraz,Waadt,SWITZERLAND. He died at the age of 64 in 1114.