Olav the Black Godfreyson
Olav the Black was born in 1173 in Isle of Man.  He died at the age of 64 in 1237 in Norge/Norway.

 Christina of Ross
She died after 1223.

 Harald Olavson
Harald was born in 1223.  He died in Shetland.

 Magnus Olavson
Magnus was born about 1230.

 Magnhild Olavsdatter of Man
Magnhild Olavsdatter of was born before 1237.

 Rognvald Olavson