In 1305,[2] Margaret married her first cousin once removed, Louis, who had inherited the crown of Navarre from his deceased mother, Queen Joan I.

Early in 1314, Margaret was caught in an alleged act of adultery in the Tour de Nesle affair.

After poor treatment in prison, Queen Margaret caught a cold and died in 1315,[3] although another source states that she was strangled to death.

As king, John ruled in his own favor and became Duke of Burgundy, later bestowing the Duchy upon his son, Philip the Bold.

[5][6] Margaret appears as a pivotal character in the second season of the historical drama series Knightfall where she is portrayed by Clementine Nicholson.