Battle of the Conwy In 877 they partitioned Mercia, taking the east for themselves and leaving the west to Ceolwulf. Gwynedd was also under attack from the Vikings, and in 877 King Rhodri Mawr was defeated and driven out. He returned the following year, but immediately came under attack from Mercia, which was still trying to maintain its hegemony in Wales. King Alfred's victory over the Vikings at the Battle of Edington in May 878 relieved the pressure on Mercia, and in the same year Mercia defeated and killed Rhodri Mawr. Ceolwulf died or was deposed in 879, and he was succeeded as Lord
History of the Puritans under King Charles I secret treaty with the group of Scottish Covenanters who became known as the Engagers. Under the Engagement, Charles agreed that episcopacy should be suppressed in the Church of England, and he agreed to support presbyterianism for three years, after which a permanent solution to the question of the church's polity could be worked out. In exchange, the Engagers agreed to bring an army of 20,000 into England in order to suppress the New Model Army and restore Charles to his throne. This led to the Second English Civil War. The royalist forces were defeated decisively at the Battle of Preston