By the late 19th century, a sensitivity arose about the heritage value of the buildings – the turning point was the demolition of "L'Étoile" guild house in 1852. Under the impulse of then-mayor Charles Buls, Brussels' authorities had the Grand Place returned to its former splendour, with buildings restored or reconstructed. In 1856, a monumental fountain commemorating the twenty-fifth anniversary of the reign of King Leopold I was installed in the centre of the square. It was replaced in 1860 by a fountain surmounted by statues of the Counts of Egmont and Horn, which was erected in front of the King's House and later moved to the Small Sablon. Thirty years later, during the "Belle Époque", a bandstand was raised in its place. In 1885, the Belgian Labour Party (POB-BWP), the first socialist party in Belgium, was founded during a meeting at the Grand Place.