Manuel Abad y Lasierra (1729–1806) was a Spanish bishop and writer who was Grand Inquisitor of Spain from 1793 to 1794.
[1] His father, Francisco Abad Navarro, was from Estadilla, and his mother, María Teresa Lasierra, was from Barbuñales.
[2] Shortly thereafter, he became a Benedictine monk at the Monastery of San Juan de la Peña.
[2] He endeared himself to Charles III of Spain by discovering ancient rights of the crown that had been forgotten.
[1] He was called to Madrid in 1789 to become preceptor of the children of Charles IV of Spain, although this appointment never ultimately occurred.