Year 572 (DLXXII) was a leap year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 572 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Emperor Justin II refuses to pay the annual tribute to Khosrau I, putting an end to the 50-year peace treaty established ten years earlier. The Armenians are considered allies to the Byzantine Empire, and Justin sends a Byzantine army into Persian territory, besieging the fortress city of Nisibis (modern Turkey).[1]
King Alboin captures Ticinum (Pavia); after a siege the Byzantine garrison surrenders to the Lombards. The city is of strategic importance, lying at the rivers Po and Ticino, and becomes the capital of the Kingdom of the Lombards.