Humbert III UNKNOWN
Humbert III was born on August 1st, 1136.

 Beatrix De Vienne
Beatrix was born in 1138.  She died at the age of 46 in 1184.

 Thomas I UNKNOWN
Thomas I was born on March 20th, 1177.  He died at the age of 55 on January 20th, 1233.