Wilhelmina "Mina" FitzClarence, née Kennedy-Erskine, was born in Montrose, Scotland, a daughter of The Hon. John Kennedy-Erskine, a military officer and courtier, and his wife Lady Augusta FitzClarence, an illegitimate daughter of King William IV -- who had been Duke of Clarence -- and the actress Dorothea Jordan. After her father died when she was a baby, Mina lived with her mother and two older siblings in a house in suburban London where her grandfather the king was a frequent visitor. The family also often visited Windsor Castle. In the late 1840s, the family travelled through Europe to "finish" their daughters' education. In 1850, they returned to London and Mina and her sister Millicent made their debut in society. In 1855, Mina married her maternal first cousin William FitzClarence, 2nd Earl of Munster, in a double wedding ceremony with Millicent and James Hay Erskine Wemyss. The FitzClarences had nine children. Lady Munster became a novelist and short story writer under the name Countess of Munster. Her first two novels, Dorinda (1889) and A Scotch Earl (1891), were published when she was 60 years old. In 1896, Lady Munster published Ghostly Tales, a collection of stories. She wrote an autobiography entitled My Memories and Miscellanies (1904).