17/08/2026
https://www.allaboutedinburgh.co.uk/midlothian-attractions with many castles and stately homes George Dundas, 16th Laird of Dundas Castle, and his wife Katherine bought the land in 1571 for their son James. At that time a Tower House stood on the lands. The mansion House that can be seen today was designed by William Adam. The only part of the old tower that remains is the Oak Room. The Mansion took almost 10 years to complete circa 1730 and is said to be “one of the most important Georgian country houses in Scotland”.
James Dundas was born in 1570 and was educated at St. Andrew's University. He died in 1628 and is buried within the vestry Borthwick Church. His son Sir James Dundas became 1st Lord of Arniston 1620 - 1679 his son Robert Dundas 2nd Lord Arniston 1650 – 1726, Robert Dundas 3rd Lord Arniston, 1685 – 1783, Henry Dundas born 1742 1st Viscount Melville 18th child of 19 to Robert Dundas 3rd Lord Arniston step brother to Robert Dundas 4th Lord Arniston. Henry Dundas was to become the most powerful person in Britain. He died in his bed in Melville Castle 29 May 1811 and was buried in Lasswade Parish church. Robert Dundas 4th Lord Arniston,
1713 – 1787, Robert Dundas 5th Lord Arniston
(6th June 1758 died 17 June 1819). The title continued as Baronet from 1898 until the death of the last male heir, Thomas Calderwood Dundas who died in 1970 when the title died out. The present owner Althea Dundas-Bekker.