In October of last year, a relic ex ossibus of Blessed Charles I was formally received at the Basilica Church of Our Lady of Mercy & St. Michael Archangel in Barcelona, the capital city of the Spanish principality of Catalonia. The bone fragment is the first relic of the last Emperor of Austria, Apostolic King of Hungary, and King of Bohemia to be publicly venerated in the Kingdom of Spain. It was requested by His Grace the Bishop of Solsona, Don Jaume Traserra y Cunillera, at the request of the Catalonian Delegation of the Constantinian Order. The relic has been enshrined in the chapel of St. Michael the Archangel, alongside a portrait of the Emperor.
A grandson of Blessed Charles, HIRH the Archduke Simeon of Austria, attended (with his wife) as the representative of HRH the Infante Don Carlos, Duke of Calabria, the Grand Master of the Constantinian Order and head of the Royal House of Bourbon-Two Sicilies. Also in attendance were Lt. Gen. Don Fernando Torres Gonzalez (Army Inspector General), General Mainar Don Gustavo Gutierrez (Chief of the 3rd Sub-inspection Pyrenees and Military Commander General of Barcelona and Tarragona), as well as representatives of the Order of Malta, the Order of the Holy Sepulchre, various guilds and corps of Spanish nobility, and lay fraternities.