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In page Blanche of Burgundy:

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On Philip V's death on 3 January 1322, Blanche's husband, Charles, inherited the crown.[1] Blanche thus became queen of France and Navarre, but she remained imprisoned and not crowned; at Charles' request, Pope John XXII declared their marriage null and void on 19 May 1322.[2] Both Charles and Blanche received permission to remarry.[2] Both of her children died in infancy, Philip by the end of March 1322[3] and Joan on 17 May 1321.[citation needed]