Which painter created the famous work of art of Mona Lisa?

Oh my goodness! The Mona Lisa is like my favourite painting. I love how in The Sarah Jane Adventures the Mona Lisa painting comes to life and Mona Lisa tries to find her long lost brother which was in a painting which was so terrible and scary it had been locked away. Anyway, the author of the Mona Lisa painting is Leonardo da Vinci. He is such a good painter and here's a painting to prove it!