It made headlines around the world — the discovery of the remains of the most notorious king of England that ever lived found buried under a car park in the unassuming English city of Leicester. Richard III’s skeleton was discovered in 2012 and, following a remarkable tale of sleuthing involving medieval Welsh poetry and DNA testing, was confirmed as Richard’s before being interred in a grand ceremony in Leicester Cathedral.

Now the story is being brought to life for the big screen. Due to premiere at the Toronto Film Festival next month, The Lost King tells the story of real-life writer (and Richard III buff) Philippa Langley. Her hunch resulted in a decade-long quest to find Richard’s body, identify it, and give it the royal burial it deserved.

Here’s what to know about the upcoming film.

The Lost King: The Plot

Richard III is the medieval king everyone loves to hate. Long thought to have been implicated in the murder of the sons of his brother Edward IV to ease his way to the throne, Richard gathered an army to face down a challenger for the kingship, Henry Tudor, at the Battle of Bosworth Field in August 1485. Richard made a bold charge across the battlefield and, after coming within a whisker of killing Henry (Richard got so close that Henry’s standard bearer was killed), his force was overwhelmed, and the king died on the field. He was the last king of England to die in battle.

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