François Ier d'Autriche
Count William Albert of Neipperg was born in 1819 at Parma, Duchy of Parma. He was the son of Adam Albert, Count of Neipperg (1775–1829), illegitimately (prior to his marriage in 1821) by his second wife, Marie Louise, Duchess of Parma (1791–1847). She was the daughter of Francis II, Holy Roman Emperor, and Princess Maria Teresa of Naples and Sicily.