Prince Robert I Duke of ARTOIS, PRINCE
He married Princess Mathilde of Brabant, Princess . Princess Mathilde of Brabant, Princess was born at 1224 daughter of Duke Heinrich II of Brabant and Princess Marie of Schwaben .
They were the parents of 4
children:
Princess Blanche of Artois
born 1247.
Duke Robert II of Artois
born 17 Sep 1250.
Blanche of Artois, Princess
born 1247.
Robert II of Artois, Duke
born 17 Sep 1250.
Prince Robert I Duke of Artois, Prince died 9 Feb 1249/50 .
Princess Mathilde of Brabant, Princess died 29 Sep 1288 .