Catholic Online: St. Hedwig
- Short biography.
- http://www.catholic.org/saints/saint.php?saint_id=351

Hedwig (Jadwiga, Avoice)
- Biographical essay.
- http://www.saintpatrickdc.org/ss/1016.htm#hedw

St. Hedwig or St Hedwiges, or Avoice, Widow, Duchess of Poland
- From Butler's Lives of the Saints.
- http://www.ewtn.com/library/MARY/STHEDWIG.htm

Patron Saints Index: Hedwig
- Illustrated profile of the Queen of Poland.
- http://www.catholic-forum.com/saints/sainth03.htm

Catholic Encyclopedia: St. Hedwig
- Duchess of Silesia, aunt of St. Elizabeth of Hungary. Hedwig married Henry I, and was the mother of seven. Upon her husband's death, she entered a Cistercian monastery. Died 1243.
- http://www.newadvent.org/cathen/07189a.htm