Hedwig was born in 1174 in Bavaria, the daughter of the Duke of Croatia. She was the maternal aunt of St. Elizabeth of Hungary. She married Duke Henry of Silesia and raised seven children, with the boys being quite a handful. She outlived all but one of her children, Gertrude. Hedwig persuaded her husband to use her dowry to found a Cisterian monastery for nuns at Trebnitz. Their daughter Gertrude later became abbess of the monastery.

Hedwig led a life of piety and solicitude for the sick and poor, including their religious education. She lived a life of poverty and humility, despite her prominent position. Every day, even in winter, she would walk barefooted, so her feet were in bad shape. A story tells us her husband sent her a pair of shoes, insisting that she not be without them — so she kept them under her arm. After the death of her husband Hedwig completely renounced the world and entered the monastery of Trebnitz which she had founded. She died on October 15, 1243 and is venerated as patroness of Poland. She is not to be confused with St. Hedwig, Queen of Poland (1371-1399), canonized by John Paul II. (Her feast day is February 28.)

http://www.catholicculture.org/culture/liturgicalyear/calendar/day.cfm?date=2013-10-16