She is a witch

Queen Margaret I (1353-1412) was ruler of Denmark, Norway and Sweden (which included Finland). She formed the Kalmar Union that joined the Scandinavian armies together. And that's probably the only part that is true in Margrete: Queen of the North by Charlotte Sieling, "a fictional movie based on a true story". It's a splendid looking film, Trine Dyrholm bleeds her heart out for the performance of the queen, but it's hopelessly lost in the boring power play between thrones.