Gioachino Rossini (1792 –1868) and librettist Gaetano Rossi (1774 –1855)
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- Based on Voltaire's play Tancrède (1759)
- melodramma eroico (opera seria/ heroic opera)
- Premiered at the Teatro La Fenice in Venice on Feb 6, 1813
- Revised ending, reworked by poet Luigi Lechi (1786- 1867), for Ferrara, March, 1813