| Joanna Biron | |||||
|---|---|---|---|---|---|
| Duchess of Acerenza | |||||
 Johanna of Courland by Moritz Michael Daffinger, c. 1820 | |||||
| Born | 24 June 1783 Mitau, Duchy of Courland and Semigallia | ||||
| Died | 11 April 1876 (aged 92) Löbichau, Thuringia, German Empire | ||||
| Burial | |||||
| Spouse |
Prince Francis Pignatelli Belmonte, Duke of Acerenza
(m. 1801; sep. 1806) | ||||
| Issue | Frederick von Piattoli (illegitimate) | ||||
| |||||
| House | Biron | ||||
| Father | Peter von Biron | ||||
| Mother | Dorothea von Medem | ||||
Johanna Katharina von Biron, Princess of Courland and Duchess of Acerenza (24 June 1783 – 11 April 1876) was a German princess from the ruling family of Courland and Semigallia (today part of Latvia) and a Duchess of Acerenza as the third daughter of Peter von Biron and Dorothea von Medem and the wife of Prince Francis Pignatelli Belmonte, Duke of Acerenza, she was mainly known for a scandalous relationship with Arnoldi, a musician from Italy.