Appointed Deputy Lieutenant county Middlesex 9 April 1797.

Commissioned as a lieutenant in the Loyal Uxbridge Volunteers (Corps of Yeomanry), 5 September 1803.

In Armagh and Limerick settling Partition of estates with Lord Sandwich, September 1805 – February 1806.

Elected a Fellow of the Royal Society, December 1808.
His proposers were:
H J De Salis (his uncle);
Chas Abbot (1st Lord Colchester (1757–1829);
William Scott (Lord Stowell);
Joseph Planta I (1744–1827, aetat suae 84), a cousin and fellow Grison.
See the monumental inscription to him in St George's, Bloomsbury);
George Pearson, MD (1751–1828);
Selsey, (John Peachey, 2nd Lord Selsey (1749–1816)); and
Edward Ash (c.1764–1829), MD, FCP.
Physician Extraordinary to the King; editor of "The Speculator", Dublin, 1790; nephew of John Ash).

Succeeds his father, 20 November 1807.

Royal Licence to use title Count in the UK granted by George III, 4 April 1809.

Appointed deputy-governor of county Armagh, 21 July 1809.

He was appointed High Sheriff of Armagh in 1810.

Rev. Dr. Henry Jerome de Salis, his uncle dies 2 May 1810.

Patron of the new school at Mullavilly, Laurelvale, Ballylisk, Tandragee, county Armagh, 1811.

Takes 21-year lease on Rokeby Hall, near Dunleer, from 29 April 1822, (550 pounds per annum).

Royal Licence to use the name (& arms) of Fane before that of Salis, 1835.

Ends his translation of all the extant works of St. Cyrillus of Jerusalem, 26 May 1835.

Elected member of the Zoological Society of London, 1836 (probably).

Recumbent figure made by Richard Cockle Lucas, for Harlington church, 1836.

His house has five Carlton gardens, and it was sold with stables March 1845 for 12,600 pounds.
The site is now occupied by BAE Systems.

His widow lived at Dawley (near Hillingdon); the Continent; and after 1845 at Mivart's hotel and then its successor Claridge's.

Recumbent figure made of his widow, Henrietta, by William Theed the Younger, for Harlington, 1856.
Appointed Deputy Lieutenant county Middlesex 9 April 1797.
Commissioned as a lieutenant in the Loyal Uxbridge Volunteers (Corps of Yeomanry), 5 September 1803.
In Armagh and Limerick settling Partition of estates with Lord Sandwich, September 1805 – February 1806.
Elected a Fellow of the Royal Society, December 1808. His proposers were:
H J De Salis (his uncle);
Chas Abbot (1st Lord Colchester (1757–1829);
William Scott (Lord Stowell);
Joseph Planta I (1744–1827, aetat suae 84), a cousin and fellow Grison. See the monumental inscription to him in St George's, Bloomsbury);
George Pearson, MD (1751–1828);
Selsey, (John Peachey, 2nd Lord Selsey (1749–1816)); and
Edward Ash (c.1764–1829), MD, FCP. Physician Extraordinary to the King; editor of "The Speculator", Dublin, 1790; nephew of John Ash).
Succeeds his father, 20 November 1807.
Royal Licence to use title Count in the UK granted by George III, 4 April 1809.
Appointed deputy-governor of county Armagh, 21 July 1809.
He was appointed High Sheriff of Armagh in 1810.
Rev. Dr. Henry Jerome de Salis, his uncle dies 2 May 1810.
Patron of the new school at Mullavilly, Laurelvale, Ballylisk, Tandragee, county Armagh, 1811.
Takes 21-year lease on Rokeby Hall, near Dunleer, from 29 April 1822, (550 pounds per annum).
Royal Licence to use the name (& arms) of Fane before that of Salis, 1835.
Ends his translation of all the extant works of St. Cyrillus of Jerusalem, 26 May 1835.
Elected member of the Zoological Society of London, 1836 (probably).
Recumbent figure made by Richard Cockle Lucas, for Harlington church, 1836.
His house has five Carlton gardens, and it was sold with stables March 1845 for 12,600 pounds. The site is now occupied by BAE Systems.
His widow lived at Dawley (near Hillingdon); the Continent; and after 1845 at Mivart's hotel and then its successor Claridge's.
Recumbent figure made of his widow, Henrietta, by William Theed the Younger, for Harlington, 1856.
Jerome, 4th Count de Salis-Soglio