Jean Sylvain Bailly

Died aged c. 57

Jean Sylvain Bailly (French: [bɑji]; 15 September 1736 – 12 November 1793) was a French astronomer, mathematician, freemason, and political leader of the early part of the French Revolution. He presided over the Tennis Court Oath, served as the mayor of Paris from 1789 to 1791, and was ultimately guillotined during the Reign of Terror.

Wikidata Wikipedia

Commemorated on 1 plaque

Monceau on Flickr

Ici Jean Sylvain Bailly, Premier Maire de Paris a ete guillotine le 11 Novembre 1793

English translation: Jean Sylvain Bailly, first Mayor of Paris, was guillotined here on 11 November 1793

2 Avenue de la Bourdonnais, Paris, France where they was executed (1793)