In 865/866 it escalated further on the arrival of what the Saxons called the Great Heathen Army, the size of which has been estimated at between five hundred and a thousand men which was under the leadership of the brothers Ivar the Boneless, Ubbe and Halfdan Ragnarsson.
It escalated further on the arrival of what the Saxons called the Great Heathen Army. This was in 865/866. The size of which has been estimated at between five hundred and a thousand men were the Great Heathen Army. These thousand men was under the leadership of the brothers Ivar the Boneless. These thousand men was under the leadership of the brothers Ivar Ubbe. These thousand men was under the leadership of the brothers Ivar Halfdan Ragnarsson.