Thomas Preston, 1st Viscount Tara
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Thomas Preston, 1st Viscount Tara (1585 - 1655) was an Irish soldier of the seventeenth century. He was a descendant of Sir Robert de Preston, who in 1363 purchased the lands of Gormanston, Co. Meath, and who was keeper of the Great Seal in Ireland some years later.
Sir Robert's great-grandson, Robert Preston, was created Viscount Gormanston in 1478; and the latter's great-grandson was Christopher, 4th Viscount Gormanston (d. 1599), whose second son was Thomas Preston, Viscount Tara. His elder brother succeeded the title of Viscount Gormanstown, so Thomas Preston pursude a career in the military. Since Roman Catholics were not allowed to hold state positions in Ireland, he entered the Spanish service and fought in the Thirty Years War. Preston was in the same Irish regiment in the Spanish service as Owen Roe O'Neill, and distinguished himself in the defence of Leuven against the French and Dutch in 1635. Between him and Owen Roe O'Neill there was from the first intense jealousy.
Preston returned to Ireland after the Irish Rebellion of 1641 to support his fellow Irish Catholics. He was appointed general of Leinster, by the Irish Confederates, which was the largest and best equipped of the Irish Catholic forces. His performance as a commander in Ireland was mixed. He won widespread praise for his successful siege of Duncannon in 1645, but lost a string of field battles including New Ross (1642) and Dungans Hill (1647). This last battle was disastrous for the Confederates, as their Leinster army was all but wiped out at it.
Preston played a major part in the Confederates internal strife, siding at first with radicals who opposed the first Ormonde peace, but later siding with the moderates who signed a conclusive treaty with Ormonde and the Royalists in 1648. He was motivated by his Old English (Ireland) roots and his extreme personal dislike of Owen Roe O'Neill, who led the opposing faction. He fought with the defeated Royalists during the Cromwellian conquest of Ireland - defending the city of Waterford until hunger and disease forced him to capitulate. He marched his remaining troops to Galway, the last Irish held city on the island. In late 1652, after another lengthy siege, Galway too was reduced by plague and lack of supplies. Preston surendered the city on condition that he and his troops be allowed to leave the country and find employment in the French army. He left the country for exile in France - where the Royalist court was in exile - in 1652.
In 1650 Charles II while in exile created him Viscount Tara; and after his departure from Ireland in 1652 he offered his services to Charles in Paris, where he died in October 1655. His wife was a Flemish lady of rank, by whom he had several children, one of his daughters being the second wife of Sir Phelim O'Neill. His son Anthony succeeded him as 2nd Viscount Tara, a title that became extinct on the death of Thomas, 3rd Viscount, in 1674.
| Preceded by: New Creation | Viscount Tara | Succeeded by: Anthony Preston |