Another angle: "Jahan" could be a phonetic spelling. Maybe the user is referring to "Jeanne d'Albret, Queen of Béarn," and "Bellaigue" is a mix-up with "Béarn." Let me confirm that Béarn is in the south of France, and she was its queen. Also, she was the mother of Henry IV, which is a key point.
Possible sources to cross-reference her name, titles, and era. Ensure dates are correct: born in 1545, died in 1578, married to Antoine de Bourbon. Her reign as Queen of Navarre and Béarn. She played a crucial role in the Huguenot cause and the religious wars. jahan de bellaigue
Her 1570s alliances with the Dutch against Spain and England’s Queen Elizabeth I further shaped European Protestant resistance. Her court in Pau and Navarre became a refuge for Huguenot intellectuals and dissidents. Tragic End and Legacy In 1577, Jeanne fled to La Rochelle after the Huguenots’ defeat at the Battle of La Roche-sur-Yon , fearing assassination. Her son, Henri, eventually converted to Catholicism to claim the French throne in 1589. Another angle: "Jahan" could be a phonetic spelling