A New Prince in Great Britain

In the year 1144, an English outlaw and former baron by the name of Geoffrey de Mandeville, 1st Earl of Essex revolted against Stephen of Blois, a claimant to the English throne during the Anarchy. In a skirmish at Burwell, present-day Cambridgeshire, he was struck by an arrow and died from the wound it had created.

But what if he hadn't been struck by that arrow at all? This timeline details the possible repercussions.

Timeline (WIP)

 * 1144: After achieving victory in the Skirmish at Burwell, Geoffrey de Mandeville launches an offensive rebel campaign with the intent of establishing himself as a sovereign monarch.
 * 1145: Through both coercion and bribery, Geoffrey gains the (nominal) military support of three disgruntled East Anglian barons, who reluctantly raise their levies for him.
 * 1146: Stephen of Blois, being faced with more and more rebellions against him, appeases Geoffrey by signing a ten-year truce with him. Notably, Stephen does not acknowledge Geoffrey as a monarch in the truce.