John Borthwick, 1st of Crookston Peerage person ID=137959 Parents unknown wife (?) William Borthwick, 1st Lord Borthwick Children George Borthwick, 2nd of Crookston Siblings Agnes Borthwick William Borthwick, 2nd Lord Borthwick Margaret Borthwick Alexander Borthwick Sir Thomas Borthwick James Borthwick