Capitalising on the unpopularity of King PERSON@1 , his mother was able to forge an alliance with discontented Yorkists in support of her son , who landed in LOCATION@1 and defeated PERSON@1 at the Battle of LOCATION@2 in NUMBER@1 , proclaiming himself King PERSON@2 .

This line of rulers started in NUMBER@1 , when PERSON@2 defeated PERSON@1 at the Battle of LOCATION@2 .
