Monaco–United States relations the First World War. From 1956 until her death in 1982, the American-born Grace Kelly was married to Prince Rainier III. They made their first official visit to the United States in 1956. Until 2006 Monaco's only career Consul-General (Maguy Maccario Doyle in 2006) operated out of New York, but directed all the Honorary Consuls in placements worldwide. In December 2006, the United States and Monaco upgraded from consular to full diplomatic relations. Shortly thereafter, Craig Stapleton (ambassador to France) was accredited to Monaco, and ambassador Gilles Noghes became the first Monegasque ambassador to the United States. In 2009 Stapleton
Albert II, Prince of Monaco since Rainier was no longer able to exercise his royal functions. On 6 April 2005, Rainier III died and Albert succeeded him as Albert II. The first part of Prince Albert II's enthronement as ruler of the Principality was on 12 July 2005, after the end of the three-month mourning period for his father. A morning Mass at Saint Nicholas Cathedral presided over by the Archbishop of Monaco, the Most Reverend Bernard Barsi, formally marked the beginning of his reign. Afterward Albert II returned to the princely palace to host a garden party for 7,000 Monégasques born in the principality.