Conversation so far:
Did Leonardo da Vinci have a family?
No
Tell me about Leonardo da Vinci's personal life.
Beyond friendship, Leonardo kept his private life secret. His sexuality has been the subject of satire, analysis, and speculation.
Who were Leonardo da Vinci's pupils?
Gian Giacomo Caprotti da Oren and Francesco Melzi
Was Leonardo da Vinci close to his pupils?
Leonardo's most intimate relationships were perhaps with his pupils Salaì and Melzi.
Was Leonardo da Vinci close with anyone else?
Mathematician Luca Pacioli.
What was Leonardo da Vinci personality like?
According to Helen Gardner, the scope and depth of his interests were without precedent in recorded history, and his mind and personality seem to us superhuman, while the man himself mysterious and remote.“
Did Leonardo da Vinci have friends?
Leonardo had many friends who are now renowned either in their fields or for their historical significance.

Question: Who were some of his closest friends?
Self-contained rewrite: Who were some of Leonardo da Vinci's closest friends?