==Events and trends== 1470 Battle of Negropont Venetian fleet failed to relieve the colony of Negropont, which was under Turkish attack March 12 - Battle of Lose-coat Field (Wars of the Roses): Yorkists chased disrobing Lancastrians from the field. August 20 - Battle of Lipnic; Ştefan cel Mare defeated the Tatars. Around this date, the Tu'i Tonga dynasty lost temporal power over Tonga and the remnants of the Tongan Empire, after almost six centuries of rule. The Tu'i Ha'atakalaua dynast… (More on 1470s)