The Scorpion King 4: Quest for Power (2015) on Netflix

Plot summary

Mathayus and Drazen slip into Skizurra's palace and take the Urn of Kings, an artifact demanded by King Zakkour of Al-Moraad. The raid goes wrong, and the urn leaves the palace without Mathayus. Zakkour sends him to the Northern Forests with a peace treaty for King Yannick of Norvania. There the urn is broken open, and a Golden Key is found hidden inside. It once belonged to Lord Alcaman, a sorcerer whose reach covered the known world, and an inscription on it is said to show how his power may be used. Mathayus lets Yannick's guards seize him so that he can get inside the castle, and in the jail he meets Valina, who claims the old royal bloodline and offers, for payment, to take him to the king.