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.
Catholic Online
Short biography of St. Hedwig, religious.
For All the Saints
Biographical essay on St. Hedwig, also known as Jadwiga or Avoice. Her feast day is 16 October.
Lives of the Saints
St. Hedwig or St. Hedwiges, or Avoice, Widow. From Fr. Alban Butler's Lives of the Saints.