The famous Cathedral of Monaco, where Rainier III, Prince of Monaco, and Grace Kelly were married in 1956, has installed a Three-Manual, 38 Stop Allen Organ during the restoration period of its pipe organ. The government of Monaco desired to maintain organ music in the Cathedral during the pipe organ's restoration, which is estimated to require more than a year to finish.
The Allen console was hoisted more than 60 feet into the organ balcony. The Allen's Cavaillé-Coll sound is impressive and powerful. The reaction to the new organ by the organist and the people who attended the First Mass of "Immaculate Conception" on December 8, 2009 (National Day) was very positive.