Gordon of Cluny: papers relating to Blairdaff Estate, 1603 - 1938 Blairdaff estate was acquired by Cosmo Gordon of Cluny in 1790 from Isobel Downie and William Adam. It included the property of Slydie. For much of the next century and a half it seems to have been regarded as part of Cluny estate or Slains estate, and there is little material directly linked to it. 1603 - 1938