Happy 9th Birthday to Royal Twins Prince Jacques and Princess Gabriella of Monaco!

Happy 9th birthday Prince Jacques and Princess Gabriella

How time flies so fast! The cutest royal twins in the world are now nine years old! Happy birthday to Hereditary Prince Jacques and Princess Gabriella of Monaco!

The fraternal twins were born on December 10, 2014, more than three years after the wedding of their parents, Prince Albert II and Princess Charlene.

The Sovereign Prince's family during the Prince's Day last month. Photo credit: The Prince's Palace of Monaco

Their father is the reigning Sovereign Prince of the tiny Principality of Monaco (since April 2005), along the Mediterranean. They frequently accompanied their parents on official events.

Prince Jacques and Princess Gabriella with their parents appeared on the balcony of the palace. Photo credit: The Prince's Palace of Monaco

Photo credit: The Prince's Palace of Monaco

This year's birthday of Prince Jacques and Princess Gabriella seems to be a low-key event. Unlike in previous years, their parents didn't reveal plans ahead of time regarding their birthday celebration.

Prince Jacques and Princess Gabriella

The royal couple's official social media account shared a sweet photo of the twins taken during the Prince's Day in November this year.

The twins accompanied their mother on International Children's Rights Day. Photo credit: The Prince's Palace of Monaco

Days ago, Prince Albert II and Princess Charlene spearheaded the inauguration of Monaco's Christmas village, unlike last year when they brought their twins to the event, this year, they did not.