| Birthname: | Isabelle Romée |
| Birth Date: | 1377 |
| Spouse: | Jacques d'Arc |
| Children: | Jeanne d'Arc Pierre d'Arc |
Isabelle Romée, also known as Isabelle de Vouthon and Isabelle d'Arc (1377–1458) and Ysabeau Romee, was the mother of Joan of Arc. She grew up in Vouthon-Bas and later married Jacques d'Arc. The couple moved to Domrémy, where they owned a farm consisting of about 50acres of land. After their daughter's famous exploits in 1429, the family was granted noble status by Charles VII in December of that year. Isabelle moved to Orléans in 1440 after her husband's death and received a pension from the city. She petitioned Pope Nicholas V to reopen the court case that had convicted Joan of heresy, and then, in her seventies, addressed the opening session of the appellate trial at Notre Dame cathedral in Paris. The appeals court overturned Joan's conviction on 7 July 1456. Isabelle died two years later, probably at Sandillon near Orléans.
Isabelle Romée was a native of Vouthon-Bas, a village near Domrémy where she and her husband Jacques d'Arc settled. Together they owned about 50acres of land and a modest house. Isabelle Romée may have earned her surname from a pilgrimage to Rome. Surnames were not universal in the early 15th century and a woman could be known by a different one from her husband.Isabelle Romée gave her daughter a religious, Catholic upbringing and taught her the craft of spinning wool. She also had three sons, Jacquemin, Jean, and Pierre, and a daughter named Catherine, though little is known about her life. Like the rest of the immediate family, she was ennobled by royal grant on 29 December 1429. She moved to Orléans in 1440 after her husband's death and received a pension from the city.
Isabelle Romée spent the rest of her life restoring her daughter's name. She petitioned Pope Nicholas V to reopen the court case that had convicted Joan of heresy. An inquiry finally opened in 1449. The chief inquisitor of France, Jean Bréhal, took up the case and conducted an initial investigation in May 1452. On 7 November 1455, after the reign of Pope Callixtus III had begun, Isabelle traveled to Paris to visit the delegation from the Holy See. Although she was over seventy years old, she addressed the assembly with a moving speech. It began, "I had a daughter, born in legitimate marriage, whom I fortified worthily with the sacraments of baptism and confirmation and raised in the fear of God and respect for the tradition of the Church," and ended, "…without any aid given to her innocence in a perfidious, violent, and iniquitous trial, without a shadow of right… they condemned her in a damnable and criminal fashion and made her die most cruelly by fire." Isabelle attended most of the appellate trial sessions despite poor health. The appeals court overturned the conviction on 7 July 1456.
Isabelle died on 28 November 1458, likely in the village of Sandillon near Orleans.