In 1815, King Louis XVIII had the ashes of Louis XVI and Marie-Antoinette transferred from the Madeleine cemetery to the Saint-Denis Basilica. Since 1975, the sovereigns were laid to rest under two of the six black Tournai stone slabs in the Bourbon crypt. They are surrounded by Louis XVIII, Louise de Lorraine (wife of Henri III) and Louis VII (dead and buried in the Barbeaux Abbey in 1180), whose ashes were transferred in 1817. The last slab, unoccupied, is intended to house the remains of Charles X, the last of the Bourbon kings, who died in 1836 in Nova Gorica in Slovenia and has still not been repatriated.