title: Longformacus House
text: # Longformacus House
  
  Longformacus House is a mansion near the village of Longformacus, Scottish Borders, Scotland.
  
  ## History
  
  The estate was once owned by the Earls of Moray and then the Earls of Dunbar before passing to the Sinclair family. A castle may have existed at the site prior to the current mansion house.
  
  Robert Sinclair of Longformacus built the current mansion house in the early 18th century. A plaque shows the inscription "Adam delin" by the Scottish architect William Adam.
  
  