Napoleon Bonaparte’s trademark bicorne hat sold at auction near Paris on Sunday for roughly $2.4 million, according to news reports.

A South Korean collector, whose name was not released, paid nearly five times more than the minimum price set for the two-cornered, black felt hat that was apparently worn by the French emperor during the Battle of Marengo in 1800, the BBC reported.

Jean-Pierre Osenat of the Osenat auction house in Fontainebleau, France said the hat, now weathered from its age, is part of a collection belonging to the Prince of Monaco, whose family is distantly related to Napoleon.