Yakun or Jakun, deriving from Old Norse Hákon, was a Varangian (Viking) leader who is mentioned in the Primary Chronicle and in the Cave monastery in Kiev. The chronicle tells that he arrived in Kievan Rus` in the year 1024 and fought in the Battle of Listven between the half-brothers Yaroslav I the Wise and Mstislav of Chernigov. ==Account== Ya....