High Quality Content by WIKIPEDIA articles! Thomas Randolph (1523–1590) was an English ambassador serving Elizabeth I of England. Most of his professional life he spent in Scotland at the courts of Mary, Queen of Scots, and her son James VI. While in Scotland, he was embroiled in marriage projects and several upheavals. In 1568-1569 he was sent on a special embassy to Russia, visiting the court of Ivan the Terrible.