After the death of Philip III in 1285, Marie lost some of her political influence, and dedicated her life to their three children:
Louis (May 1276 – 19 May 1319),
Blanche (1278 – 19 March 1305) and
Margaret (died in 1318). Her stepson
Philip IV was crowned king of France on 6 January 1286 in
Reims. Together with
Joan I of Navarre and
Blanche of Artois, she negotiated peace in 1294 between England and France with
Edmund Crouchback, the younger brother of
Edward I of England, although the peace was not honoured and broken by
Philip IV. Marie lived through Philip IV's reign and she outlived her children. She died in 1322, aged 67, in the monastery at
Les Mureaux, near
Meulan, where she had withdrawn to in 1316. Marie was not buried in the royal necropolis of
Basilica of Saint-Denis, but in the
Cordeliers Convent, in
Paris. Destroyed in a fire in 1580, the church was rebuilt in the following years. ==See also==