François succeeded his brother Henri in 1616 and became Duke of Luxembourg and Governor of Senlis.
François Mitterrand | François Truffaut | Claude François | François Villon | François Rabelais | François Hollande | Montmorency | Jean-François Lyotard | Jean-François Millet | François-René de Chateaubriand | François Boucher | François Fénelon | François Tombalbaye | François de La Rochefoucauld (writer) | Charles François Dumouriez | François Mauriac | Montmorency, Val-d'Oise | Jean-François de Galaup, comte de Lapérouse | Jean-François Champollion | François Viète | François Ozon | François Bozizé | Louis-François Richer Laflèche | Joseph François Dupleix | Jean-François Marmontel | François-René de La Tour du Pin, Chambly de La Charce | François Denhaut | François-André Danican Philidor | Anne de Montmorency | Michel François |
It was on this occasion that he was created an Honorary Knight of the Order of the Garter.
In 1684, Monsignor François de Montmorency-Laval gives the official titles to the Catholic parish of Champlain, twenty years after the creation of the Lordship of Champlain, pointing out that the place is commonly called "Champlain".
Fonded by Monseigneur François de Montmorency-Laval in 1663, the Séminaire de Québec now houses the musée de l'Amérique française, which gives it the distinction of being the oldest museum in Canada.