She was born circa 1725. Her father was Jose Jacinto de la Peña, and her mother was Ana Maria Guajardo. Her mother owned Mier 48 grant.
She married Jose Florencio Chapa, son of Jose Nicolas Chapa and Maria Inez Baez de Benavides. He owned Mier 45 (tract), Mier 46 (tract).
Francisco Chapa, born 1738. He married Maria Rosalia Lopez.
Juan Chapa, born 1742.
Gertrudis Chapa, born 1744.
Maria Rosalia Chapa, born 1750. She married Jose Antonio Ramos, son of Jose Antonio Ramos and Josefa Canales on 11 Jun 1776 in Mier.
Jose Joaquin Chapa, born 1754. He married Maria Tomasa Baez de Benavides, daughter of Cristobal Javier Baez de Benavides and Maria Rita Cuellar on 13 Feb 1776 in Revilla.
Jose Santiago Chapa, born 1757. He married Juana Hinojosa, daughter of Gervacio Hinojosa and Teresa Treviño on 28 Jan 1777 in Mier.
Maria Luisa Chapa, born 1761. She married Jose Antonio Guerra Cañamar, son of Francisco Guerra and Ana Josefa de la Garza on 13 Jan 1776 in Mier.
Jose Florencio Chapa, head of household, español
Margarita Peña, wife, española
Francisco Chapa, son, español, 12 years old
Maria Ana Gertrudis Chapa, daughter, española, 10 years old
Juan Chapa, son, español, 8 years old
Gertrudis Chapa, daughter, española, 6 years old
Maria Rosalia Chapa, daughter, española
In 1757, she lived in Mier in household number 1. The church census recorded that she was married to Captain Don Jose Florencio Chapa. She was given the tile "Doña". Her household included 25 people, including 10 children, and 13 servants.
In 1782, she lived in Mier in household number 2. The church census recorded that she was married, española, and 57 years old. Her household included 3 people:
Don Jose Florencio Chapa, married, español, age 64.
Doña Margarita Peña, married, española, age 57.
Jose Clemente Chapa, a child, casta, age 7.
In 1791, she lived in Mier in household number 4. The church census recorded that she was a widow, española, and 69 years old. Her household included 10 people:
Dn Jose Joaquin Chapa, married, español, age 39.
Da Maria Tomasa Baez de Benavides, married, española, age 28.
Maria Juana Chapa, an unmarried girl, española, age 14.
Jose Gilome Gutierrez Chapa, a young child, español, age 5.
Jose Maria Chapa, a young child, español, age 1.
Da Margarita Peña, a widow, española, age 69.
Maria Ana Gertrudis Chapa, a widow, española, age 40.
Jose Ignacio Gutierrez Chapa, single, español, age 16.
Jose Clemente Chapa, single, casta, age 19.
Ana Josefa Gutierrez Chapa, a child, española, age 9.