He was the eldest surviving son of William Falconer, 6th Lord Falconer of Halkerton, a colonel in the Dutch Army, and Rembertina Maria Idiking (the daughter of Burgomaster Idiking of Groningen).

[2] Upon the death of his father on 12 December 1776, he succeeded as 7th Lord Falconer of Halkerton.

[2] He inherited the estate of Kintore, Hallforest Castle which had been given to the family by King Robert the Bruce, and Keith Hall.

[6] Around 1766, he was married to Christina Elizabeth Sichterman (d. 1809), a daughter of Jan Albert Sichterman of Groningen, the Intendant General of the Dutch Settlements in the East Indies and Director and Fiscal of Bengal in 1734.

[7] Together, they were the parents of one son and seven daughters:[2] Lord Kintore died on 30 August 1804.