[7] Louise and her sisters, Victoria and Maud, were bridesmaids at the wedding of their paternal aunt Princess Beatrice to Prince Henry of Battenberg in 1885.

[8] Despite her mother's attempts to keep her daughters unmarried and by her side, on 27 July 1889, Louise married Alexander Duff, 6th Earl Fife, who was eighteen years her senior, at the Private Chapel in Buckingham Palace with the Archbishop of Canterbury officiating at the service.

[9] “O Perfect Love, all human thought transcending", was written by Dorothy Blomfield for her sister's marriage in 1883, and was intended to be sung to Strength and Stay, in Hymns Ancient & Modern, No.

Two days after the wedding, Queen Victoria created him Duke of Fife and Marquess of Macduff in the Peerage of the United Kingdom.

The letters patent creating this dukedom contained the standard remainder to heirs male of the body lawfully begotten.

[10] After the birth of their two daughters, on 24 April 1900, Queen Victoria signed letters patent creating a second Dukedom of Fife, along with the Earldom of Macduff in the Peerage of the United Kingdom with a special remainder: in default of a male heir, these peerages would pass to the daughters of the 1st Duke, and then to their male descendants.

[13] In December 1911, while sailing aboard SS Delhi to Egypt, the Princess Royal and her family were shipwrecked off the coast of Morocco.

Louise succumbed to heart disease in her sleep at 2:30PM on 4 January 1931 at age 63 at her home at 15 Portman Square London, with her two daughters, Alexandra and Maud, at her bedside.