Prince Charles, Camilla
Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall attend the reopening of Hillsborough Castle on April 09, 2019 in Belfast, Northern Ireland. Getty Images/Chris Jackson

Camilla Parker-Bowles looked lovely during her latest royal engagement with Prince Charles which also fell on the day of their 14th wedding anniversary.

On Tuesday, Camilla and Prince Charles paid a visit to Hillsborough Castle in Northern Ireland in order to unveil a plaque and official reopen it. The castle, a royal residence and the official home of the secretary of state for Northern Ireland, has been under construction since 2014.

Clarence House announced on Twitter that Hillsborough Castle was restored to its former glory "with the help of people from across Northern Ireland, including suppliers, contractors and local craftspeople." Another tweet revealed that "over 700 contractors and craftspeople have been involved in the renovation of @HillsCastle with 20 different craftspeople working on the State Rooms alone."

Prince Charles also unveiled a new portrait done by Gareth Reid, a local artist. His piece will be displayed in the newly restored castle.

For their engagement, Camilla stunned in a forest green coat and matching dress, which she paired with black knee-high boots. Her husband, meanwhile, looked smart in a blue suit and patterned tie.

Aside from the reopening of Hillsborough Castle, Camilla also paid a visit to the Clore Learning Centre. While there, she met and interacted with local children and residents of Lillie Court, a care facility near Lisburn.

Of course, many gave their well-wishes and greetings to Camilla and Prince Charles for their anniversary as well.

The Hillsborough Castle sent a message acknowledging the royal couple's special day, tweeting: "Today is also Their Royal Highnesses’ 14th wedding anniversary! Congratulations from all at Hillsborough Castle and Gardens."

The Lord-Lieutenant of Belfast also wished Prince Charles and Camilla a happy anniversary on her Twitter page, saying, "The Lord Lieutenant has welcomed TRH The Prince of Wales & The Duchess of Cornwall to Belfast and wished them a Very Happy Wedding Anniversary."

Prince Charles married his second wife in a civil ceremony held at the Windsor Guildhall on April 9, 2005. The ceremony was followed by a marriage blessing at St. George's Chapel at Windsor Castle.