Jerónimo Osório, Portuguese historian and author (b. 1506)
Jerónimo Osório da Fonseca (1506 – 20 August 1580) was a Portuguese Roman Catholic humanist bishop, historian and polemicist. An extensive notice of his life and thought (Vita) was written by his nephew, a canon of Évora also named Jerónimo Osório, to introduce his edition of his uncle's Complete Works (dedicated to King Philip I of Portugal) published in 1592.