MAIRIE DE L’ANCIEN 2 ÉME ARRONDISSEMENT.
OU FUT CÉLÉBRÉ LE 9 MARS 1796
LE MARIAGE DU GÉNÉRAL BONAPARTE ET DE JOSÉPHINE DE BEAUHARNAIS.

[Emblem of Paris]
MAIRIE DE PARIS
1789-1989

The sign is on the town hall of the second district, where in a civil ceremony Napoleon Bonaparte married his first wife Joséphine de Beauharnais, who when he crowned himself emperor, she became empress (year 1804).

The place was photographed on the same day Click for a larger image

On the other side of the gate is another sign that also deals with Napoleon’s marriage, and on it is written:
1796-1996
COMMÉMORATION DU MARIAGE DE
NAPOLEON BONAPARTE
ET
JOSÉPHINE DE BEAUHARNAIS

9 MARCH 1996
FONDATION NAPOLEON

[translation]
1796-1996
COMMEMORATION OF THE WEDDING OF
NAPOLEON BONAPARTE
AND
JOSEPHINE DE BEAUHARNAIS

MARCH 9, 1996
NAPOLEON FOUNDATION
Click for a larger image

The place is also commemorated on a sign from the "History of Paris" series Click for sign's details

Translation of the text on the sign:
TOWN HALL OF THE OLD 2ND DISTRICT.
WHERE WAS CELEBRATED ON MARCH 9, 1796
THE MARRIAGE OF GENERAL BONAPARTE AND JOSEPHINE DE BEAUHARNAIS.

[Emblem of Paris]
PARIS TOWN HALL
1789-1989