Robert Armstrong-Jones, the Welsh physician, was grandfather to Antony Armstrong-Jones, 1st Earl of Snowdon and was born in 1843.
Sir Robert Armstrong-Jones, CBE (born Robert Jones; 2 December 1857  31 January 1943) was a Welsh physician and psychiatrist. 
 He was the grandfather of Antony Armstrong-Jones, 1st Earl of Snowdon (d. 2017). 
Antony Charles Robert Armstrong-Jones, 1st Earl of Snowdon, (7 March 1930  13 January 2017), commonly known as Lord Snowdon, was a British photographer and film maker. 
