when was pere lachaise cemetery built?
<answer> Père Lachaise cemetery was built in 1804. <context> Established in 1804, Père Lachaise is the largest cemetery in the city of Paris (44 hectares or 110 acres). The cemetery takes its name from the father confessor to Louis XIV, Père François de la Chaise (1624–1709), who lived in the Jesuit house rebuilt in 1682 on the site of the chapel.