 Complete the following phrase:  The most obscure of the four known sons of John na Seamar Burke died 1583, Burke and his brothers - Redmond Burke, Baron Leitrim, William Burke, Lord of Bealatury and John Óge Burke - fought with Hugh ONeill, 2nd Earl of Tyrone and Aodh Ruadh Ó Domhnaill against the English during the Nine Years War Ireland. He survived the 