Between 1594 and 1603, Elizabeth faced her most severe test in Ireland during the Nine Years' War, a revolt that took place at the height of hostilities with Spain, who backed the rebel leader, Hugh O'Neill, Earl of Tyrone.
Antara tahun 1594 hingga 1603, Elizabeth mengalami ujian terberat di Irlandia karena Perang Sembilan Tahun, pemberontakan yang berlangsung selama perang dengan Spanyol, yang mendukung pemimpin pemberontakan, Hugh O'Neill, Earl Tyrone.