She is currently known for an act of heroism on 27 June 1472, when she prevented the capture of Beauvais by the troops of Charles the Bold, Duke of Burgundy. The town was defended by only 300 men-at-arms, commanded by Louis de Balagny.
The Burgundians were making an assault, and one of their number had actually planted a flag upon the battlements, when Jeanne, axe in hand, flung herself upon him, hurled him into the moat, tore down the flag, and revived the drooping courage of the garrison. In gratitude for this heroic deed, Louis XI instituted a procession in Beauvais called the "Procession of the Assault", and married Jeanne to her chosen lover Colin Pilon, loading them with favours. There is an annual religious procession on the last weekend in June through the streets of Beauvais to commemorate Jeanne's deed.
A statue of her was unveiled on July 6th, 1851 (see picture).
- She is the tragic figure in the play by the Marquis de Sade, Jeanne Laisné ou le siège de Beauvais published in 1813. It has never been performed.
- She was portrayed in the French film: Le Miracle des loups (1924) of Raymond Bernard.
- The knight Jenavelle Rolantir character who appears in "Elf Saga: Doomsday" (2014) by Joseph Robert Lewis is inspired by various French heroes, including Roland and Jeanne Hachette.
- Hilowitz, Beverley (1974-01-01). A Horizon guide: great historic places of Europe. American Heritage Pub. Co.; book trade distribution by McGraw-Hill. ISBN 9780070289154.
- See Georges Vallat, Jeanne Hachette (Abbeville, 1898).
- Clayton, Ellen C (Sep 20, 2018). Female Warriors. p. 87. ISBN 9783734039904.
- Walsh, William Shepard (1897-01-01). Curiosities of Popular Customs ... Illustrated.