She was the elder daughter of Prince Arthur, Duke of Connaught, third son of Queen Victoria of the United Kingdom, and his wife Princess Louise Margaret of Prussia.

Princess Margaret was born at Bagshot Park and baptised in the Private Chapel of Windsor Castle on 11 March 1882 by the Archbishop of Canterbury.

[3] Gustaf Adolf and Margaret fell in love at first sight; he proposed at a dinner held by Lord Cromer at the British Consulate in Egypt and was accepted.

The couple spent their honeymoon at Adare Manor in County Limerick, Ireland, and arrived in Sweden on 8 July 1905.

[5] One of Margaret's wedding presents was the Connaught tiara, which remains in the Swedish royal jewellery collection today.

[6] Newspaper articles reporting on the valuation of her mother's estate for Probate in 1917 note that Princess Margaret received a £25,000 marriage settlement from her parents.

She and her spouse received Sofiero Palace as a wedding gift, and they spent their summers there and made a great effort creating gardens in an English style on the estate; her children participated in their improvement.

When paraffin supplies ran low she organized a candle collection, and in November 1917 she instituted a scheme to train girls to work on the land.

At the end of the war, when the final steps towards full democracy were taken in Sweden, Margaret's positive attitude to reform influenced her husband the Crown Prince.

Unlike the attitude of her reform-hostile in-laws, King Gustaf and Queen Victoria, this is believed to have eased political tensions and preserved the Swedish monarchy.

[11] At 02:00 on Saturday, 1 May 1920, her father's 70th birthday, Crown Princess Margaret died suddenly in Stockholm of "blood poisoning" (sepsis).

Since the previous Sunday, she had been suffering from pain in her face from something below her eye, and doctors decided to perform another procedure.

She asked to be buried in her wedding dress and her veil, with a crucifix in her hands, in a simple coffin made from English oak and covered in British and Swedish flags.