He was assassinated in the Berruecos mountains on 4 June 1830. Carcelén learned of his death 2 weeks later and penned a letter to General José María Obando, accusing him of having plotted her husband's murder. On 16 July 1831, Carcelén married a second time to the Colombian general Isidoro Barriga y López de Castro, who had fought alongside Sucre during a campaign in Peru. This was a controversial decision; the custom at the time was for a widow to wait 5 years before remarrying out of respect for the deceased husband. On 16 November 1831, several months after the marriage, Barriga was playing with Teresa, the daughter of Sucre and Carcelén, in his arms, when she fell to the patio, hitting her head and dying instantly. Although there was some speculation that her death was intentional, most historians believe it was a tragic accident, citing Barriga's reputation as a kind and generous man, rather than bloodthirsty. Yet other historians believe that Teresa did not die in an accident at all, and instead succumbed to a stomach virus, a common cause of death in children her age during that time. In 1832, Carcelén gave birth to Manuel Felipe Barriga y Carcelén de Guevara, her only child from the marriage. Barriga died 29 May 1850. One year after the death of Barriga, Carcelén married a third time to José Baltazar Carrión Torres, a lawyer native to Loja. They had one child, Mercedes Soledad Carrión y Carcelén de Guevara, who did not make it to adulthood, likely due to problems related to the advanced age of her mother. Felipe, Carcelén's only surviving child, married Josefina Flores Jijón, daughter of General Juan José Flores. Carcelén believed that General Flores had played a part in the murder of her first husband, and her relationship with her son suffered as a result of his marriage. Carcelén died on 15 December 1861 at the age of 56, and was buried in Quito. She was mourned throughout the city, where she was well-known for her charity towards the poor.