Marquesses of Castries Marquis de Castries First holder René Gaspard de La Croix, 1er marquis of Castries Records #3 Holders Family filter On/Off 1 René Gaspard de La Croix, 1er marquis of Castries Charles Eugène Gabriel de La Croix, marquis of Castries * 1727 Joseph François de La Croix, marquis of Castries * 1663 Corrections and Updates To suggest a correction or an update. Click Here