Duke Gundrod of Vestfold
Duke Gundrod of was born in 0810.  He died at the age of 46 in 0856.

 Duke Halfdan III of Vestfold
Duke Halfdan III of was born in 0828.  He died at the age of 32 in 0860.

 Duke Erik I of Jutland
Duke Erik I of was born in 0830.  Duke Erik I of is no longer alive.

 Duke Olaf II of Vestfold
Duke Olaf II of was born in 0833.  Duke Olaf II of is no longer alive.