 In 1494 Louis Picart, magistrate of Troyes and Tournaisis, friend and chamberlain of King Louis XII with whom he went to Italy, undertook the construction of the chateau.In August 1563, the Regent, Catherine de' Medici and the young King Charles IX visited Ételan, having just recaptured Le Havre from the English (27 July 1563).Thus it was in Ételan that Regent, advised by Michel de l'Hôpital decided to proclaim one year early the majority of the King (4 August 1563).