Alexander Colquhoun, 1st of Tilliquhoun (died 1718) (d. 1718) Parents Sir John Colquhoun of Luss, 1st Bt. Lady Lilias Graham Children John Colquhoun James Colquhoun Siblings Sir John Colquhoun of Luss, 2nd Bt. Jean Colquhoun Katherine Colquhoun Lilias Colquhoun Sir James Colquhoun of Luss, 4th Bt. Partners Annabella Stewart