The eldest child in the family, Jean was appointed abbot of Hambye at the age of 12, as a reward for his father's services to King Charles IX during the wars of the League. He became grand vicar to the bishop of Coutances, then canon and grand cantor of the cathedral. A humanist, he contributed through his funding to the influence of the college of Coutances .
From the 16th century to the middle of the 19th century, the manor of La Fieffe had the same owners as the castle of Tourlaville. Passed from the Fouquet de Réville to the Clérel de Tocqueville family, La Fieffe was sold on 1 February 1838 by Alexis de Tocqueville the illustrious political thinker, to two brothers from Cherbourg, Antoine and François Pierre, whose descendants sold the property to a certain Aimable Huet. His son, Abbot Joseph Huet, became vicar of Coutances Cathedral. It was he who enlarged the manor while respecting the original architecture of the building. Thus, three centuries apart, two abbots have marked the history of La Fieffe.
The property was inherited by Admiral Lemonnier Chief of the General Staff of the Navy during the Second World War. After having held the highest positions, this exceptional military man retired to La Fieffe, where he died in 1963.

           (painting representing Marguerite de Ravalet - Mignard - 1658)