Sigulf Fitz Forne
Sigulf was born in 1030 in Nunburholme, York, Eng.  Sigulf is no longer alive.

 Forne Fitz Sigulf de Greystoke
Forne Fitz Sigulf was born in 1053 in Greystoke, Cumberland, Eng.  He died at the age of 77 in 1130.