 Complete the following phrase:  The region took no active part in the ensuing civil wars until the Battle of Tewkesbury in 1471, but both parties to the feud were killed in the civil wars over the next few years. The new Earl of Devon, who had killed Radford, was a thorough supporter of the Lancastrian regime. After the Yorkist victory at the Battle of Northampton in June 1460, he took his troops northwards to Margaret of Anjou in York, where, in April 1461, he was executed by the new king, Edward IV after the 