Henry Marquis de Montalt was the half brother of Phillipe Marquis de Montalt. He was the birth father of Adeline. Henry was kidnapped by men hired by his brother on October 12, 1642 while on the road to Caux. He was held as a prisoner at least three weeks at the abbey, and then killed. While captive, he wrote the manuscript which is discovered by Adeline in the abbey. La Motte also discovers Henry's skeleton in the basement of the abbey.