Alexander Crichton of Brunstane,, was a Scottish Protestant laird who advocated the murder of Cardinal David Beaton and supported the plan for the marriage of Mary, Queen of Scots and Prince Edward of England. In contemporary letters and documents Alexander is known by variant spellings of "Brunstane," his territorial designation. The original House of Brunstane was near Penicuik, and another Crichton estate at Gilberstoun near Portobello, Edinburgh later became known as Brunstane.

Sir Ralph Sadler or Sadleir PC, Knight banneret was an English statesman, who served Henry VIII as Privy Councillor, Secretary of State and ambassador to Scotland. Sadler went on to serve Edward VI. Having signed the device settling the crown on Jane Grey in 1553, he was obliged to retire to his estates during the reign of Mary I. Sadler was restored to royal favour during the reign of Elizabeth I, serving as a Privy Councillor and once again participating in Anglo-Scottish diplomacy. He was appointed Chancellor of the Duchy of Lancaster in May 1568.