Duncan of Caithness
Duncan of was born about 0871 in Caithness, Scotland.  He died after 0910.

 Groa Thorsteinsdottir
Groa was born about 0887 in Hvammi, Dala, Iceland.  She died in 0914.

 Grelod Duncansdottir of Caithness
Grelod Duncansdottir of was born about 0910 in Caithness, Scotland.  She died after 0941.