Cunigunde of Luxembourg, OSB, also called Cunegundes, Cunegunda, and Cunegonda and, in Latin, Cunegundis or Kinigundis, was Empress of the Holy Roman Empire by marriage to Holy Roman Emperor Saint Henry II. She ruled as interim regent after the death of her spouse in 1024. She is a saint and the patroness of Luxembourg and Lithuania; her feast day is 3 March.