Both Uses

Napoleon Bonaparte
in
The Hunchback of Notre Dame
(Edited)

Jacques du Haut-Pas, which was then Gothic, pointed, charming; Saint-Magloire, a fine nave of the fourteenth century, which Napoleon turned into a hayloft; Notre-Dame des Champs, where there were Byzantine mosaics; lastly, after having left behind, full in the country, the Monastery des Chartreux, a rich edifice contemporary with the Palais de Justice, with its little garden divided into compartments, and the haunted ruins of Vauvert, the eye fell, to the west, upon the three Roman spires of Saint-Germain des Prés.
Chpt 1.3.2

Napoleon = French general and emperor who conquered most of continental Europe for a brief time early in the 19th century
, resembles the laws of Minos,—it is called in architecture, "the Messidor"** taste;—the Paris of Napoleon in the Place Vendome: this one is sublime, a column of bronze made of cannons;—the Paris of the Restoration, at the Bourse: a very white colonnade supporting a very smooth frieze; the whole is square and cost twenty millions.
Chpt 1.3.2 *

Definitions:

(1) (Napoleon Bonaparte)
French general and emperor who ruled (through conquest) most of continental Europe for a brief time (1769-1821)

Napoleon rose during the French Revolution, seized power in 1799, and crowned himself emperor in 1804. He expanded French influence through wars across Europe and also passed lasting reforms, especially the Napoleonic Code, which shaped modern civil law in many countries. His failed invasion of Russia (1812) began his decline; he was forced to abdicate, briefly returned to power, and was finally defeated at Waterloo (1815). He died in exile on St. Helena.
(2) (meaning too rare to warrant focus)
Less commonly, napoleon can refer to a pastry, a card game, or to anyone with that name.