There were many Eoghans in Ireland.  One of them, a king of Connaught, when dying of his wounds, commanded himself to be buried upright, with his red javelin in his hand, and his face turned towards Ulster, as though still fighting with his foes.  As long as he thus remained, Connaught prevailed and Ulster lost; but the Ultonians discovered the spell, and re-buried him in an opposite direction, thereby changing the tide of success. 
    Eoghan in Scotland, is pronounced Yō-hăn, and indiscriminately translated by Evan, Ewan, and Hugh.  Several of the early kings, who are all numbered together in Scotland as Eugenius, were properly Eoghan, and Evan or Ewan is certainly the right Anglicism, though Hugh is made to do duty for these as well as for Aodh. (History of Christian Names, Yonge, 1884)