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 Basra (871) placed the city under virtual siege, harassing it with attacks day and night and destroying the surrounding villages. They also cut off the supply routes to the city, which soon resulted in a shortage of resources. This was temporarily relieved after Mansur ibn Ja'far began organizing armed escorts for supply ships; by mid-871, however, the operation of the convoys had largely fallen apart and supplies for the inhabitants again became scarce. Hunger and disease broke out, and fighting erupted between the city factions. By late August 871, 'Ali ibn Muhammad decided that Basra had been reduced to the point where