Margaret is working toward a union of Sweden with Denmark and Norway by having Olaf elected to the Swedish throne.

She is on the verge of achieving this goal when Olaf II/IV suddenly dies.

However, Denmark makes Margaret temporary ruler upon the death of Olaf.

Norway follows suit and crowns Margaret on February 2, 1388.

Queen Margaret knows that her power will be more secure if she is able to find a king to rule in her place.

She settles on Eric of Pomerania, grandson of her sister.

At an all-Scandinavian meeting held at Kalmar, Erik of Pomerania is therefore crowned king of all three Scandinavian countries.

Royal politics thus result in personal unions between the Nordic countries, eventually bringing the thrones of Norway, Denmark, and Sweden under the control of Queen Margaret when the country enters into the Kalmar Union.