Son of William de Douglas, Sir James received the lands of Kincavil and Calderelece (East Calder) from King Robert I in 1315. He was also known as Sir James Douglas de Laudonia (meaning Lothian).

He was the father of five children prior to his death circa 1323.

• Death: BEF. 20 APR 1323
  
  Father: William (of Hermiston) Douglas b: in Living 1277
  
  Marriage 1 Joan
  Children
  1.  Sir William Douglas, Lordship of Dalkeith
  2.  Sir John Douglas
  3.  James Douglas
  4.  Elizabeth Douglas