Bertram I De Baux
Bertram I De was born about 1129.  He died on April 5th, 1181.

 Tiburge III Montpellier Omelas Orange
Tiburge III Montpellier Omelas was born before 1145.  She died in 1189.

 Bertram I Des Baux
Bertram I Des was born about 1160.  He died in 1201.

 Guillaume De D' Orange Baux
Guillaume De D' Orange was born about 1162.  He died in 1218.