The prince was met by First Daughter Evangeline Lourdes "Luli" Arroyo and given a tour of the Malacañang Museum.
The visit of the prince to the Palace was not open to media coverage, and no immediate details were available as to what he discussed with Luli.
Considered a major heartthrob in the royalty and celebrity world, Casiraghi is the grandson of Princess Grace and Prince Rainier III of Monaco.
He rides, skis, plays football and also plays the guitar.
He finished high school at the International School of Paris. He is fluent in French, English, Italian and German.
He was invited by Amade-Virlanie Foundation which, since its inception in 1992, has helped thousands of children who became victims of various forms of abuse and exploitation on the street, in jail, from prostitution and syndicates and even from their own families and relatives. Aurea Calica