Princess Charlene became emotional during a speech from her husband, Prince Albert, as he marked twenty years on throne.
The 47-year-old and her 10-year-old twins, Jacques and Gabriella, led other members of the House of Grimaldi for the extravagant celebrations.
Albert stood surrounded by his family as he delivered an emotional speech in French to the principality on two decades of his rule.
Turning to his wife and two children, the Prince said: “There is my blood family, of course: my wife, Princess Charlene, my children, Jacques and Gabriella. I thank them every day for their love and support.”
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|Princess Charlene became emotional during Prince Albert's speech to mark 20 years on the throne
Charlene was evidently moved by the gesture as she could be seeing wiping away a tear as her husband spoke.
In another tender moment, Albert shared a kiss with Charlene’s cheek and planted another on his daughter’s Gabriella head.
The Prince looked down, clearly emotional, as closely embraced his son and heir, Jacques.
In his speech, Albert also spoke of the “considerable change” Monaco had seen during his rule.
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|Charlene and Albert shared a kiss during his emotional address
“It has been modernised and extended, but with constant concern for the well-being of all those who live here.
“Our social model has been strengthened, our economy has grown and our public finances have remained particularly healthy,” he continued.
In a call for unity, Albert continued: “We must be aware of how lucky we are, aware of the joy of living in Monaco, and aware of the strength of the ties that bind us.
“For my part, I remain as determined, as motivated and as confident as I was 20 years ago,” he concluded.
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|Albert also shared a particularly tender moment with his son and heir
Saturday's celebration at Place du Palais attracted the entire Grimaldi clan for a show of unity and support for the sovereign's milestone anniversary.
Prince Albert's sisters, Caroline and Stéphanie of Monaco, joined the festivities alongside numerous younger royals.
Andrea Casiraghi and Tatiana Santo Domingo attended, alongside Charlotte Casiraghi, whose partner, Pierre Casiraghi, was notably absent from the gathering.
Alexandra of Hanover made an appearance, as did Louis and Pauline Ducruet with Marie Ducruet. Camille Gottlieb and Caroline's future son-in-law, Ben Sylvester Strautmann, were also amongst the attendees.
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|Saturday's celebrations concluded with the cutting of an enormous cake
The younger generation, including Balthazar, Stefano and Maximilian Casiraghi, provided particularly endearing moments throughout the evening.
Festivities commenced at 6.30pm, with Monaco's national anthem opening the proceedings.Traditional folk performances also entertained the assembled crowd throughout the celebration, which continued until approximately 10.30pm.
The evening concluded with a spectacular cake presentation, accompanied by vibrant lighting displays that particularly delighted the youngest royals in attendance.
The sovereign spent considerable time mingling with citizens who had gathered at the Palace gates. Many left written tributes commemorating his 20-year reign, with several messages subsequently shared through the Princely House's official social media channels.