Piazza dei Martiri (in Italian: Martyrs' Square) is a monument square in Naples, Italy, located one block north of the eastern end of the large seaside park known as the Villa Comunale. The square was originally dedicated to Santa Maria a Cappella, but took on patriotic significance when Italy was united in 1861. A memorial column was erected in 1866 and four lions were added at the base. Each of the four animals represents a different patriotic struggle: the Neapolitan revolution of 1799; the uprisings in 1820 and 1848, and the war of unification in 1860.