Juan O'Neille y Varela (c. 1765 – 24 February 1809), also known as Juan O'Neylle, was a Spanish Army officer who served at the beginning of the Peninsular War, rising to the rank of lieutenant general and command of the 1st Division of the Army of Aragon in 1808.[1]
- ^ (in Spanish). Martín-Lanuza, Alberto. "Juan O'Neille y Varela". Diccionario Biográfico electrónico (DB~e). Real Academia de la Historia. Retrieved 16 January 2025.