Jadwiga was king of Poland, not queen :) I know this is surprising, but she was crowned as _king_ :)
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I made the name Jadwiga throughout the article. Switching back and forth is confusing. There are other St. Hedwigs, but I don't think there are any other St. Jadwigas. There may be, though. --
MichaelTinkler
Explanation of king vs. queen issue added. --
Taw