Jean Baptiste Colbert, Marquis of Seignelay

Seignelay married twice; firstly to Marie Marguerite d'Alegre, who died in 1678.

Catherine was a daughter of Henri Goyon and Marie Françoise Le Tellier, herself a sister of François Michel Le Tellier de Louvois.

While the arsenals too were reconstructed, modern studies criticise the Colberts, father and son, for concentrating on ships rather than infrastructure.

In 1675, Nicolas Boileau dedicated his ninth epistle, Nothing is beautiful but the truth, to Siegnelay and he was named Grand Treasurer of the Order of the Holy Spirit.

In 1683, he inherited the Château de Sceaux, which he improved, employing the services of Jules Hardouin Mansart.