William Frederick Wyndham (6 April 1763 – 11 February 1828) was an English aristocrat and diplomat.
Lady Holland recorded surprise at the appointment: I went to supper at Lord Elgin's.
Lord Elgin frankly told me he doubted my story, it was impossible that such a man could be employed [...] W. Wyndham's appointment is not much relished, as the Court want a steady, reasonable man, disposed to soothe matters, and, God knows, poor Wyndham is not capable of filling that post.
[2]On 21 July 1784, Wyndham married Frances Mary Harford, the illegitimate daughter of Frederick Calvert, 6th Baron Baltimore and Hester Whelan.
[5] Wyndham had three illegitimate children with his second wife, Polish noble Julia Konstancja Smorczewska, Countess Spytecka (born Warsaw, c. 1785 – 1 November 1871),[6] widow of Count Ignacy Spytecki (Ukrainian: Ігнацій Спитецький), Chamberlain of the King of Poland, from whom she inherited lands in Kydantsi, Ternopil, Austria (now Ukraine).