Albert II, Prince of Monaco Prince William, Duke of Cambridge, and Catherine Middleton on 29 April 2011. The wedding took place over two days: the civil marriage ceremony took place on 1 July 2011, followed by the religious ceremony on 2 July 2011. Twins Gabriella Thérèse Marie, Countess of Carladès and Jacques Honoré Rainier, Hereditary Prince of Monaco were born to Prince Albert and Princess Charlene on 10 December 2014. On 10 December 2014, Prince Albert and Princess Charlene welcomed their first and second child, twins Gabriella Thérèse Marie and Jacques Honoré Rainier. The twins were born at Princess Grace Hospital in La Colle, Monaco.
Flag of Monaco white field. Flag of Monaco The national flag of Monaco () has two equal horizontal bands of red (top) and white, both of which have been the heraldic colors of the House of Grimaldi since at least 1339. The present bicolor design was adopted on April 4, 1881, under Prince Charles III. Monaco's original flag, which was similar to its current state flag but bore an older version of its coat of arms, was in use from the principality's early days (except during its annexation to France from 1793 to 1814) until the present, simpler design was adopted in 1881.