First, to a daughter, probably Katherine, of Brian Mac Phelim O'Neill of Clandeboye In 1574, the marriage was annulled on grounds of consanguinity, although they had had several children. The defeat of O’Neill and the conquest of his province of Ulster was the final step in the subjugation of Ireland by the English.

Although born into the The Earl of Essex was sent to Ireland in 1599 and after much dilatory action arranged a truce with the Irish leader, but O'Neill's terms angered Elizabeth, who categorically refused them. Although O'Neill contested the constituency of Stockport in 1906, he was first elected to the Westminster Parliament for Mid-Antrim in 1915, he later represented Antrim and then North Antrim. In 1574 married Siobhán (or Joanna; died 1591), daughter of Sir Hugh O'Donnell. Robert William Hugh O'Neill, 1st Baron Rathcavan Bt. When English troops were sent to subdue him in 1595, O'Neill defeated them decisively. He later professed his loyalty to Elizabeth and was granted a full pardon in 1598. The colonists, frustrated at their lack of success, committed two awful atrocities against the natives. O'Neill was the third son of Edward O'Neill, 2nd Baron O'Neill, and the uncle of Terence O'Neill, Prime Minister of Northern Ireland.

He was a graduate of St. Athanasius School, Northeast Catholic High School Class of 1951 and LaSalle University Class of 1962. O’Neill’s resistance towards the English. Hugh's Famous Marinated Steak Tips* sirloin tips, broccolini and red wine sauce; served with your choice of mashed potatoes, hand-cut fries or rice 18. After Hugh O'Neill became chief in 1593, however, he turned on the English, made peace with Hugh Roe O'Donnell, the chief of the O'Donnells, the traditional enemies of the O'Neills, and asked the kings of Scotland and Spain for aid in the fight against England. Hugh O’Neill, 2nd earl of Tyrone, Irish rebel who, from 1595 to 1603, led an unsuccessful Roman Catholic uprising against English rule in Ireland. In 1579 this marriage was repudiated, but shortly afterwards they were reconciled. Stronger forces under Baron Mountjoy were sent in 1600, forcing O'Neill to retreat to his Ulster strongholds. Queen Elizabeth apparently intended to use O'Neill to help complete the subjugation of Ireland and he was named 2nd Earl of Tyrone, although his cousin was then head of the O'Neill clan. He served as a Major in the British Army. This colonial venture was privatised to save money but proved beyond the resources of the projectors, Sir Thomas Smith and the earl of Essex. On the government side, the much-heralded ‘enterprise of Ulster’ did not begin immediately and it failed when it did. O'Neill was the third son of Edward O'Neill, 2nd Baron O'Neill, and the uncle of Terence O'Neill, Prime Minister of Northern Ireland.

Hugh O'Neill was an Irish Gaelic lord, called the "Great O'Neill, " 2nd Earl of Tyrone, and the most important Irish leader of his day. In 1607, fearing arrest, O'Neill and O'Donnell took their families from Ireland to Rome, where O'Neill died, July 20, 1616.O'Neill was married four times. Hugh O’Neill protested at this action against the young Tirconnell lord, to whom his daughter was betrothed, as ‘the most prejudice that might happen unto me’. By 1595 O’Neill was to commit his first act of resistance to the English when he overran the … Two months later an English army under Sir Henry Bagenal was met and destroyed by O'Neill and O'Donnell at the battle of the Yellow Ford of the Blackwater, a victory which marked the highwater mark of Irish independence in that era.