This man blew on the blowing stone to summon his troops before his victory in the Battle of Ashdown and had his life biographied by the bishop Asser.  
After a series of defeats this man signed the treaties of Wareham and Exeter. This man blew on the blowing stone to summon his troops before his victory in the Battle of Ashdown and had his life biographied by the bishop Asser.  He built a series of fortresses called "burhs" and signed the Treaty of Wedmore with a man he defeated at the Battle of Edington, also called the Battle of Ethandun. That victory over the Great Heathen Army lead by Guthrum helped confine a certain group to East Anglia and parts of Mercia, called the Danelaw. For 10 points, name this king of Wessex who pushed back the Viking occupation of England, the only ruler of England known as "the Great".
After a series of defeats this man signed the treaties of Wareham and Exeter.
Alfred the Great