Maria Dolores de Alegria was born circa 1777.
In 1782, she lived in Mier. The church census recorded that she was a young child, india, and 5 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.