Olaf Gudrodsen
Olaf was born in 0770 in Norway.  He died at the age of 70 in 0840.

 Rognvald Olafsen
Rognvald was born in 0790 in Jutland, Norway.  He died at the age of 60 in 0850.

 Helgi Olafsson
Helgi was born about 0802 in Dublin, Dublin, Ireland.  He died about 0819.