Angela Hammitzsch, born Angela Hitler (July 28, 1883 - October 30, 1949), first married to Leo Raubal, Sr., was the elder half-sister of Adolf Hitler. She was born in Braunau, Austria, the second child of Alois Hitler and his second wife, Franziska Matzelberger. Her mother died the next year. She and her brother Alois Hitler, Jr. were raised by their father and his third wife Klara Hitler. Wikipedia
The definitive Wikipedia entry for Angela Hitler. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Angela_Hitler