Sentence 1: In 1291 , Mahaut married Otto IV , Count of Burgundy . She married the mother of three children , including two girls who became kings of France .
Sentence 2: In 1291 , Mahaut married the Count of Burgundy , Otto IV , who was mother of three children , including two girls who married kings of France .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?