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
Battle of Horodok (1655) Potocki surrendered to King of Sweden Charles X Gustav, on October 28, 1655. Battle of Horodok (1655) The battle of Gródek Jagielloński or battle of Horodok took place during the Russo-Polish War (1654–67) on 29 September 1655. Russian and Ukrainian Cossack forces under Vasily Borisovich Sheremetev and Bohdan Khmelnytsky engaged a Polish–Lithuanian army under Stanisław "Rewera" Potocki near Gródek Jagielloński, which at that time was part of Polish-Lithuanian Commonwealth’s Ruthenian Voivodeship (now Horodok, Lviv Oblast, Ukraine). Polish forces were defeated and forced to retreat, losing their supplies to the Russians. The Russians advanced, besieging Lwow, and Potocki with the remains