What made these laps noteworthy was the driver, Albert II, Sovereign Prince of Monaco.

FORBES: Fisker Karma at Monaco Grand Prix

The Fisker Karma also made an appearance at My Yacht Monaco along with actress Michelle Rodriguez, Stelios Haji-Ioannou, Michael Saylor, Prince Mishaal, Princess Dona, Paddy Byng, CEO of Asprey, Bob Horner, SVP of Bombardier Jets, Darell Aviss, President of Swiss Trust, and Sovereign Prince of Monaco, Albert II, Superyachts.com reports.

FORBES: Fisker Karma at Monaco Grand Prix

Andrea Casiraghi is the nephew of Monaco's ruling sovereign, Prince Albert II.

NPR: Monaco's Princess Caroline Becomes A Grandmother

George V had decreed that the titles Royal Highness (HRH) and prince and princess should be restricted to the children of the sovereign, the children of the sovereign's sons, and the eldest son of the eldest son of the Prince of Wales.

BBC: Royal baby girl 'would be princess'

Accompanied by Prince Philip, the Queen arrived by horse-drawn carriage at the Sovereign's entrance of the palace shortly before 1115 BST (1015GMT).

BBC: You are in: UK Politics

It was when Queen Victoria decided, 17 years after her marriage to her cousin Albert of Saxe-Coburg-Gotha, to appoint him Prince Consort and to consult him fully about the matters of state that she had to deal with as sovereign.

BBC: Philip the record-setting consort