Leonardo Marsili (1641–1713) was a Roman Catholic prelate who served as Archbishop of Siena (1682–1713).
Leonardo Marsili was born in Siena, Italy on 15 May 1641 and ordained a priest on 17 May 1665.
[1] On 26 Jan 1682, he was appointed during the papacy of Pope Innocent XI as Archbishop of Siena.
[2][1] In February 1682, he was consecrated bishop in Rome by Gasparo Carpegna, Cardinal-Priest of San Silvestro in Capite.
[2][1] While bishop, he was the principal co-consecrator of Ulisse Giuseppe Gozzadini, Titular Archbishop of Teodosia (1700).