[S] (1630–1714). Mackenzie succeeded his father as baronet in 1654 and joined the royalist rising in Scotland the same year. In 1661–4 he was a lord of Session as Lord Tarbat and, after a period out of favour, lord justice general [S] 1678–80 and again 1705–10, lord clerk register [S] 1681–9 and 1692–5. A competent administrator, he was a vigorous supporter of James VII and II, who created him Viscount Tarbat [S] in 1685, but came to terms with William. During Anne's reign, he was secretary of state [S] 1702–5, was advanced to the earldom of Cromarty [S] 1702, and used his influence in favour of the Union. He subsequently served as a representative peer. His grandson, the 3rd earl, was sentenced to death in 1746 for his part in the '45, but pardoned.
From The Oxford Companion to British History in Oxford Reference.
Subjects: British History.