The Lion Monument or the Lion of Lucerne, is a rock relief in Lucerne, Switzerland, designed by Bertel Thorvaldsen and hewn in 1820–21 by Lukas Ahorn. It commemorates the Swiss Guards who were massacred in 1792 during the French Revolution, when revolutionaries stormed the Tuileries Palace in Paris.

Due to the Swiss Guards who defending the Tuileries from revolutionaries who stormed the palace in 1791, an initiative to create the monument was taken by Karl Pfyffer von Altishofen, an officer of the Guards who had been on leave in Lucerne at that time of the fight. He began collecting money in 1818. The monument was designed by Danish sculptor Bertel Thorvaldsen, and finally hewn in 1820–21 by Lukas Ahorn, in a former sandstone quarry near Lucerne. Carved into the cliff face, the monument measures ten meters in length and six meters in height.

The monument is dedicated Helvetiorum Fidei ac Virtuti ("To the loyalty and bravery of the Swiss"). The dying lion is portrayed impaled by a spear, covering a shield bearing the fleur-de-lis of the French monarchy; beside him is another shield bearing the coat of arms of Switzerland. The inscription below the sculpture lists the names of the officers and gives the approximate numbers of soldiers who died (DCCLX = 760), and survived (CCCL = 350).

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