Denis was one of the seven bishops that was sent to Gaul to convert people during the reign of emperor Decius. He was regarded as the first bishop of Paris. Little is known about his life but legend has it that Saint Denis was beheaded on Montmartre, which translates to “mountain of martyrs”. According to the legend, his corpse, which was decapitated, carried his head to the northeast of Paris. A basilica was built over his tomb at the beginning of the sixth century.