|Start date May 1621||Location Saumur, France|
|Similar Siege of Saint‑Jean‑d'Angély, Siege of Nègrepelisse, Naval battle of Saint‑Martin‑de‑Ré, Recovery of Ré island, Battle of Blavet|
The Capture of Saumur (French: Capture de Saumur) was the military investment of the Huguenot city of Saumur accomplished by the young French king Louis XIII in May 1621, following the outburst of the Huguenot rebellions. Although the Huguenot city was faithful to the king, Louis XIII nevertheless wished to affirm control over it. The Governor of the city Duplessy-Mornay was tricked out of his command of Saumur and the city was invested.
Louis XIII then continued his campaign southward against the Huguenots, and moved to the Protestant stronghold of Saint-Jean-d'Angély led by Rohan's brother Benjamin de Rohan, duc de Soubise. This led to the month-long Siege of Saint-Jean-d'Angély, and to a succession of other sieges in the south of France. on 24 June 1621. Louis XIII's campaign ended in a stalemate, leading to the 1622 Peace of Montpellier, which temporarily confirmed the right of the Huguenots in France.