Duchess is one of the most stylish characters Elden Ring: Nightreign, but it is not available for the game from the beginning. It needs to be unlocked, and fortunately, this process is not too complicated. PC Gamer portal speakHow to open a Duchess.

To open the Duchess, players need to participate in an expedition to Tricphalus and defeat him – victory over the boss will offer a special monument. After that, the monument should be attributed to the priest in the fortress of the round table: she waited right next to the table, in the center of the location.
Although the monument is guaranteed to fall in the first victory on the surface, there is a small chance that can be obtained for the failure exploration – likely this allows you to unlock the Duke before the deadline.
After giving relics for the priest, you will see a short cut will reveal the Duchess. You can then switch to it in the same way as on any other player who can play – access the altar next to the explorer.
Tricefal is the first of the bosses available, but this does not mean it will be simple. For victory, most likely, at least a few failures and a luck will be required. The good news is the paragraph of the introductory exploration not only opened the Duke, but also the new mechanisms.