Interesting fact that I've just discovered: the Margherita Pizza is actually named after Margherita of Savoy, Queen of Italy (late 1800's-early 1900's)!!
Quote: 'In 1889 the pizza Margherita was named after her. It is the colors of the Italian flag. Red sauce, green basil and white cheese. Her name means "daisy" in Italian. Margherita Peak, the highest point of Mount Stanley, the third highest mountain in Africa, is named after her.'
I always thought it was just the name used for a chesse and tomato pizza, with no particular meaning, lol!