The size 40 boots (roughly seven in British measure) were saved for posterity by General Henri Gatien Bertrand, who had followed the French leader into exile on the far-flung South Atlantic island after his defeat at the Battle of Waterloo in 1815, auctioneers said.
The general later gave the shoes to a sculptor working on an equestrian statue of Bonaparte.
The relics were expected to fetch between €50,000 and €80,000, but bidding at the Drouot auction rooms was brisk.
Like Imelda Marcos, the former first lady of the Philippines, Napoleon had a large collection of footwear, which he bought from the Paris shoemakers Jacques in Montmartre.
Although British propagandists often caricatured the Corsican as an authoritarian midget, at 1.69 metres (five foot two inches) he was actually above average height for his time.
His family has kept them ever since, said auctioneers Binoche & Giquello.
General Bertrand returned to France after the death of his beloved leader in 1821.
Many French people still suspect Napoleon was poisoned by his British jailors.
Some historians, however, are convinced he was slowly murdered with arsenic administered by Count Charles de Montholon, his closest friend on the island.
They think he was blackmailed by French royalists into lacing the emperor's wine with the poison after he was caught stealing money.