<page_title> List of rulers of Bavaria </page_title> <section_title> Houses of Welf and Babenberg, 1070–1180 </section_title> <table> <cell> Henry XII the Lion <col_header> Name </col_header> </cell> <cell> Duke of Bavaria <col_header> Title </col_header> </cell> <cell> 1156 <col_header> Start term </col_header> </cell> <cell> 1180 <col_header> End term </col_header> </cell> <cell> Welf <col_header> House </col_header> </cell> <cell> When Frederick I, Holy Roman Emperor, became king of Germany, he restored Bavaria to the Welf line in the person of Henry X's son, Henry XII the Lion, Duke of Saxony. <col_header> Note </col_header> </cell> </table>
Henry the Lion was a member of the Welf dynasty and Duke of Saxony, and Duke of Bavaria as Henry XII from 1156 until 1180.