Back Jan Mariya Vizkonti (Milan hersoqu) Azerbaijani Джовани Мария Висконти Bulgarian Gian Maria Visconti Breton Joan Maria Visconti Catalan Giovanni Maria Visconti German Τζαν Μαρία Βισκόντι Greek Giovanni Maria Visconti Esperanto Giovanni Maria Visconti Spanish Giovanni Maria Visconti Estonian Giovanni Maria Visconti Finnish
| Gian Maria Visconti | |
|---|---|
| Duke of Milan | |
.jpg) | |
| Duke of Milan | |
| Reign | 3 September 1402 – 16 May 1412 |
| Predecessor | Gian Galeazzo |
| Successor | Filippo Maria |
| Born | 7 September 1388 Abbiategrasso |
| Died | 16 May 1412 (aged 23) Milan |
| Spouse | Antonia Malatesta of Cesena |
| House | Visconti |
| Father | Gian Galeazzo Visconti |
| Mother | Caterina Visconti |
Gian Maria Visconti (or Giovanni Maria; 7 September 1388 – 16 May 1412) was the second Visconti Duke of Milan, the son of Gian Galeazzo Visconti and Caterina Visconti. He was known to be cruel and was eventually assassinated. He had no children.