Sigtrygg II Olafsson (also known as Sihtric, Sitrick and Sitric in Irish texts; or Sigtryggr and Sigtryg in Scandinavian texts) was a Hiberno-Norse king of Dublin (possibly 989–994 AD. He was from the house of the Uí Ímair monarchy
King Echmarcach mac Ragnaill died c.1064/1065, he was a dominant figure in the 11th-century Irish Sea region. At his height, he reigned over Dublin, the...