However, after the position of Ulugh Muhammad strengthened, he began plundering raids: "he ravaged foreign lands, like an eagle, flying far from his nest in search of food[1]". This caused concern of people in the inner circles of Moscow Principality, they put pressure on Vasily II, and so he decided to expel Ulugh Muhammad from Belyov.[2] It is interesting to note that at that time the Grand Duke of Lithuania was formally suzerain of Belyov, like other Upper Oka Principalities, but they also retained their ties with Moscow.[3]