What is the oldest section from where Robert Hay was born?
Robert Hay (Egyptologist): Robert Hay (6 January 1799 – 4 November 1863) was a Scottish traveller, antiquarian, and early Egyptologist. Robert Hay (Egyptologist):  He was born in Duns Castle, Berwickshire. Duns Castle: Duns Castle, Duns, Berwickshire is a historic house in Scotland, the oldest part of which, the massive Norman Keep or Pele Tower, dates from 1320.
Norman Keep or Pele Tower