|HRH The Princess Margaret and her husband Mr Antony Armstrong-Jones|
On 6 May 1960, HRH The Princess Margaret married Antony Armstrong-Jones at Westminster Abbey. The princess was escorted to the altar by her brother-in-law HRH The Duke of Edinburgh. At the link below, one can watch film of the royal wedding between the only sibling of HM The Queen.
Princess Margaret Rose (21 August 1930-9 February 2002) was the second daughter and last child of King George VI (1895-1952) and Queen Elizabeth (1900-2002; née Bowes-Lyon), who wed in 1923. Antony Charles Robert Armstrong-Jones (7 March 1930 – 13 January 2017) was the first son and second child of Major Ronald Armstrong-Jones (1899-1966) and his first wife Anne Messel (1902-1992; later Countess of Rosse through her second marriage), who married in 1925 and divorced in 1934. The engagement between HRH The Princess Margaret and Mr Antony Armstrong-Jones was announced in February 1960.
The princess' husband was created Earl of Snowdon and Viscount Linley on 6 October 1961. The Earl and Countess of Snowdon had two children during their union: David, Viscount Linley (b.1961; 2nd Earl of Snowdon), and Lady Sarah (b.1964). Princess Margaret and the Earl of Snowdon divorced in 1978.