This mansion was built by the Chevoir, the first was the Mérien Chevoir, knight, lord of Coatezlan, to 1335.

The current manor was changed under the Chevoir Roland, lord of Coatezlan and his wife Joan Red, Trébriand lady, in the 1500s. Found their weapons on one of the chimneys of the mansion.

The arms of the Chevoir was: "Gules a silver crescent, surmounted by three mascles well arranged in chief."

Their emblem was a unicorn head, found on a stone emblazoned at the entrance of the church-Berhet Comfort, representing the arms of the Mérien Chevoir, and his wife Mary Kersaliou (including its large mother was the one Chevoir, lady Kersylvestre).

The family also owned the Chevoir mansions Kergoff (Goudelin) of Trébriand (Trémel) of Kerviziou (Trédarzec) of Coatcongar (Morlaix), of Tromartin (Minihy-Tréguier), the Lennic (Trégrom) Coatjagu (Squiffiec) , Kerantourpet (Comfort-Brehet) ...

The family history is linked to the abduction of a nickname of its members, the Chevoir Mary, heiress of Coatezlan lady, called the Penn-Herez by Guy Eder de La Fontenelle, famous leaguer, beaten in Place de Greve in Paris September 27, 1602.