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.