Fulk IV
Fulk IV was born in 1043.  He died at the age of 66 on April 14th, 1109.

 Bertrade De Montfort
Bertrade was born in 1060.  She died at the age of 56 on February 14th, 1116.

 Fulk V
Fulk V was born in 1092.  He died at the age of 52 on November 13th, 1144 in Acre.