Jean De Viennois

Jean De was born in 1227.  Jean De's father was Dauphin Andre Guigues De Burgundy Count Albon-Vienois and his mother was Beatrix Di Montferrato De Saint Bosset. He had a brother named Guigo VII De. He had two half-sisters named Sibylle De and Juliana De.  He died at the age of 12 in 1239.