Article continues below advertisementPrince Albert II of Monaco made a striking return to public life, sporting a visible facial scar following a recent medical procedure on his scalp. The 67-year-old royal attended the opening of the 48th International Circus Festival at the Chapiteau de Fontvieille in Monaco on Friday, January 16, accompanied by his nephew Louis Ducruet and niece Camille Gottlieb. Louis and Camille are the children of Albert's sister, Princess Stéphanie of Monaco.Article continues below advertisementSource: MEGAPrince Albert II underwent a medical treatment on his scalp.