Adalbert III Seigneur de Grandson 
Adalbert III Seigneur was born in 1030 in Neuchatel,SWITZERLAND. Adalbert III Seigneur's father was Adalbert II Seigneur de Grandson and his mother was UNKNOWN Teutberge. His paternal grandfather was Lambert I Seigneur de Grandson. He was an only child. He died at the age of 56 in 1086.
He had a biological son named I, Seigneur de Grandson.
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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.