Born on December 2, 1826, Saint Maria Soledad was the second of five children. She had a simple childhood although she had poor health. In 1851, she joined the new Institute of the Servants of Mary with a purpose of caring for the sick in their own homes. She became the 7th of the founding group and finally took the name Sister Maria Soledad.
After spending five years into the ministry, Saint Maria Soledad was appointed as Superior and took charge of the Congregation when Father Michael left for his missions. She became the Foundress and Mother of the Servants of Mary. She overcame many challenges throughout her leadership in the Congregation. It eventually grew in number. In 1875, they began a ministry in Havana, Cuba. It received Papal approval in 1876. Saint Maria Soledad governed for 35 years.
