: Since he was the illegitimate son of a Florentine notary, he was not permitted to use a traditional family name. Signing as "Io, Leonardo" emphasized his individual identity over his lineage.
: Many galleries and museums use the title "Io, Leonardo" for exhibits focusing on his personal journals and self-portraits.
: In the modern era, the name Leonardo is associated with Leonardo.Ai , a popular generative AI platform used for visual content creation.