[5] Sanquhar later told a Venetian diplomat in London, Giovanni Carlo Scaramelli, that he had met the Pope in Ferrara.
[6] On 27 May 1602, he returned from his travels and was welcomed by James VI at Dunfermline Palace, and attended the christening of Robert Stuart, Duke of Kintyre.
[7] In July he was appointed to attend the French ambassador, the Baron de Tour, who arrived before Lord Sanquhar knew it.
Subsequently, Sanquhar acted as an interpreter between the Baron de Tour and the English diplomat George Nicholson.
[10] On 10 August 1604, while staying with Lord Norreys, he went to practice swordsmanship with a fencing master called John Turner at Rycote.
On 9 February 1608 he performed in the masque The Hue and Cry After Cupid at Whitehall Palace as a sign of the zodiac, to celebrate the wedding of John Ramsay, Viscount Haddington to Elizabeth Radclyffe .
[12] His wife Anne Fermor divorced him and later married the Irish nobleman Barnabas O'Brien, 6th Earl of Thomond.
He was executed by hanging on 29 June 1612 in Westminster Palace yard, confessing that he had offended England and Scotland, and declared he was a Roman Catholic.
All his property was left to his natural son, Robert Crichton, but the heir male, William, seventh lord Sanquhar, disputed the succession, and on the matter being referred to James VI Robert Crichton was served heir of entail to him in the estate of Sanquhar 15 July 1619.