Hepburn was born Audrey Kathleen Ruston or Edda Kathleen Hepburn-Ruston on 4 May 1929 at number 48 Rue Keyenveld in Ixelles, a municipality in Brussels, Belgium.

Her father, Joseph Victor Anthony Ruston (1889–1980), was a British subject born in Auschitz, Bohemia, Austria-Hungary. He was the son of Victor John George Ruston, of British and Austrian descent. and Anna Wels, of Austrian descent. In 1923-24 Joseph had briefly been an honorary British consul in Samarang in the Dutch East Indies and prior to his marriage to Hepburn's mother he had been married to Cornelia Bisschop, a Dutch heiress.

Hepburn's mother, Ella van Heemstra (1900–1984), was a Dutch baroness. She was the daughter of Baron Aarnoud van Heemstra, who served as mayor of Arnhem from 1910 to 1920 and as Governor of Dutch Suriname from 1921 to 1928, and Elbrig Willemine Henriette, Baroness van Asbeck (1873–1939).

Hepburn's parents were married in Batavia in September 1926. At the time, Ruston worked for a trading company. After three years spent travelling between Brussels, Arnhem, The Hague and London, the family settled to the suburban Brussels municipality of Linkebeek in 1932. Hepburn's early childhood was sheltered and privileged. As a result of her multinational background and travelling with her family due to her father's job, she learned to speak five languages: Dutch and English from her parents, and later French, Spanish, and Italian.

More Info: en.m.wikipedia.org