| Original title | La congiura dei dieci |
|---|---|
| Danish title | Ridderen fra Siena |
| Leikstjórn | Etienne Périer |
| Land | Italien, Frankrig |
| Domestic distribution | Metro-Goldwyn-Mayer |
| Danish theatrical release | 11.06.1965 |
| Cinemas | Vester Bio |
Companies |
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| Production company | Compagnia Cinematografica Montoro |
| Domestic distribution | Metro-Goldwyn-Mayer |
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Instruktion |
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| Instruktion | Etienne Périer |
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