BERNARD De BAUX
BERNARD was born in 1138.  He died at the age of 43 in 1181.

 TIBURGE D'ORANGE
TIBURGE was born in 1142.

 BERTRAND Des BAUX
BERTRAND was born in 1163.  He died at the age of 38 in 1201.

 GUILLAUME Des BAUX
GUILLAUME was born in 1165.  He died at the age of 53 on July 30th, 1218 in AVIGNON, FRANCE.