Who created "Study of a Seated Youth for the Age of Gold"?

Study of a Seated Youth for the Age of Gold was created by Pietro da Cortona (Pietro Berrettini) in 1637.

What medium is "Study of a Seated Youth for the Age of Gold"?

Study of a Seated Youth for the Age of Gold is Black chalk.

Yes, Study of a Seated Youth for the Age of Gold is in the public domain and available for free download under CC0 license.

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Pietro da Cortona (Pietro Berrettini), 1637