IV Baldwin
IV was born in 0980 in Flanders, France.  He died at the age of 59 on May 30th, 1039.

 Otgive de Luxembourg
Otgive was born in 0995 in Flanders, France.  She died at the age of 35 on February 21st, 1030 in Flanders, France.

 V Baldwin
V was born in 1012 in Flanders.  He died at the age of 55 on September 1st, 1067 in Lille.