Jadwiga was officially crowned as "King of Poland" instead of "Queen" to reflect the fact that she was a sovereign in her own right.

Jadwiga of Poland

Queen of Poland from 1384 to 1399

Jadwiga, also known as Hedwig and in Hungarian: Hedvig, was the first female monarch of the Kingdom of Poland, as well its last hereditary ruler. She reigned from 16 October 1384 until her death. Born in Buda, she was the youngest daughter of Louis I of Hungary and Poland, and…

List of Polish monarchs

Poland was ruled at various times either by dukes and princes or by kings. During the latter period, a tradition of free election of monarchs made it a uniquely electable position in Europe.

Queen regnant

Female monarch who rules in her own right

A queen regnant is a female monarch, equivalent in rank, title and position to a king. She reigns suo jure over a realm known as a kingdom; as opposed to a queen consort, who is married to a reigning king; or a queen regent, who is the guardian of a child monarch and rules pro…