Francisco de Aguiar y Seijas

In this Spanish name, the first or paternal surname is Aguiar y Seijas and the second or maternal family name is Ulloa.
Painting of Aguiar in the Pinacoteca Profesa in Mexico City.

Francisco de Aguiar y Seijas y Ulloa (11 February 1632, Betanzos, La Coruña – 14 August 1698, Mexico City) was a Spanish cleric and bishop, notable as bishop of Michoacán and archbishop of Mexico.