Monaco is celebrating the 20th anniversary of its Washington embassy in 2026 with a year-long programme highlighting the depth of ties between the Principality and the United States, coinciding with America’s 250th independence anniversary and the wedding of Princess Grace and Prince Rainier III 70 years ago.

The Principality will use the convergence of these three anniversaries to highlight cultural and diplomatic ties built over generations. Monaco plans to sign a memorandum of understanding this spring with America 250, the bipartisan organisation coordinating national independence celebrations. The ceremony will take place at the Ambassador’s Residence – the former home of Warren G. Harding, America’s 29th president – followed by a reception.

Princess Grace legacy returns to spotlight

The embassy will develop a cultural initiative with the Princess Grace Foundation-USA and the Smithsonian exploring the late princess’s legacy. Philadelphia, Grace Kelly’s birthplace, will receive particular attention during events planned across Washington, New York and other American cities throughout the year.

The 1956 marriage between Prince Rainier III and the Hollywood actress created lasting cultural connections between Monaco and the United States that extend beyond typical diplomatic relationships. Monaco officials view the anniversary as opportunity to showcase this bond through institutional meetings, cultural gatherings and philanthropic initiatives.

Monaco plans to issue commemorative stamps as part of the America 250 celebrations, marking the friendship between the two nations.

Two decades of diplomatic presence

Monaco established its Washington embassy in 2006, creating a mission that now serves as focal point for bilateral relations spanning commerce, culture, environmental cooperation and shared values. The small Mediterranean principality has used the embassy to facilitate partnerships on ocean conservation and climate action while supporting its economic interests in American markets.

Programme details will be released on monacoeventsusa.com throughout the year as events are finalised.

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