Earl Guttorm of Birkebein
Earl Guttorm of was born in 1114.  He died at the age of 59 in 1173.

 Sigrid of Birkebein
Sigrid of was born in 1120.  She died at the age of 68 in 1188.

 Earl Baard of Birkbein
Earl Baard of was born in 1155.  He died at the age of 42 in 1197.