Ana Maria de Cuellar was born circa 1750, the daughter of Tomas de Cuellar and Maria Inez Martinez.
She married Miguel de Alegria.
In 1782, she lived in Mier. The church census recorded that she was married, española, and 28 years old. Her household included 4 people:
Miguel de Alegria Lazcano, español, married, age 60.
Ana Maria de Cuellar, española, married, age 28.
Jose Miguel de Alegria, español, a young child, age 3.
Maria Dolores de Alegria, india, a young child, age 5.