Guy de Thiers III
Guy was born about 1075 in Chalons, Champagne, France.  He died in 1113 in Thiers, Puy-de-Dome, Auvergne, France.

 Hugh de Chalons
Hugh was born about 1100 in Chalons, Champagne, France.

 Guillaume de Thiers III
Guillaume was born before 1110 in Chalons, Champagne, France.  He died in 1171 in Thiers, Puy-de-Dome, Auvergne, France.