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