[1] Princess Margaret was the younger sister of Queen Elizabeth II, while Antony Armstrong-Jones was a noted society photographer.

Princess Margaret met photographer Antony Armstrong-Jones in 1958 at a dinner party at the Chelsea home of Lady Elizabeth Cavendish.

[2][3] The two had previously encountered each other when Armstrong-Jones was the photographer at the wedding of Margaret's friends, Lady Anne Coke and The Hon.

[citation needed] Margaret made her way with the Duke of Edinburgh from Clarence House in the Glass Coach, arriving at the church at 11:30.

[9][10] Richard Dimbleby, Jean Metcalfe, Anne Edwards, Brian Johnston, and Wynford Vaughan-Thomas covered the event for the BBC.

Notable guests in attendance included: The wedding coincided with the 10th Commonwealth Prime Ministers' Conference held at Windsor Castle.

[17] Following a balcony appearance and a wedding breakfast for 150 guests at Buckingham Palace, the bride changed into her Victor Stiebel going-away outfit and they departed in an open Rolls-Royce.

[19] On 6 October 1961, Armstrong-Jones was raised to the peerage as Earl of Snowdon and Viscount Linley, of Nymans in the County of Sussex, by Queen Elizabeth II.

It was the first divorce by a senior member of the royal family since that of Princess Victoria Melita of Saxe-Coburg and Gotha and Ernest Louis, Grand Duke of Hesse in 1901.