
The square dates back to the 17th century, when Dutch governor Comte de Monterey collaborated with the military engineer Louvigny in order to strengthen Luxembourg's fortification walls, resulting in the demolition of some 95 houses in the lower city. The residents of these houses were moved to accommodation in the upper city, replacing the Franciscan and Jesuit gardens. The Place d'Armes was inaugurated on 10 August 1671, along with the new streets built around it. Surrounded by cafés, restaurant terraces, shops and offices arranged around a band stand, the leafy square is overseen by the "Cercle Cité" administrative building and regularly hosts musical performances, as well as the traditional Christmas market.