Thorkil Sprakalaeg
Thorkil is no longer alive.

 Thyra Haroldsdottir
Thyra was born before 0936.¹   She died on September 18th, 1000.¹ 

 Ulf (Wolf) Thorkilsson
Ulf (Wolf) was born in 0967 in Halland, Sweden.  He died at the age of 60 on September 22nd, 1027.

 Fulbert De Falaise
Fulbert was born about 0973 in Falaise, Calvados, France.