High Treason in England: Those Convicted of High Treason

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The Down Survey of Ireland was conducted between 1655 and 1656 by William Petty, a physician, scientist, and administrator serving under the English Commonwealth. The purpose of the Down Survey was to create a detailed land survey for the redistribution of Native Irish lands to English soldiers and creditors after the Cromwellian conquest of Ireland (1649–1653). This survey is referred to as the “Down” Survey because the results were systematically laid down on paper, marking the first cadastral survey in Western Europe. Commissioned by the English Parliament under Oliver Cromwell, it was executed by Sir William Petty and a team of surveyors who utilized chain and compass measurements. Within this survey, Quin is frequently identified as Catholic and Quinn as Protestant, though this is not always consistent.  

Below is the genealogy of Capt. Thady Quinn from the King James' Irish Army List by D'Alton 1689.  

To assist you in discerning this ancient sept, recognized in the native Annals from the earliest date of surnames, are those of Ulster, who commemorate among their heroes the figure of Neill or Niall Ó Cuinn, who fought at Clontarf in 1014. This family spread widely over Ireland, holding territories in Limerick, Clare, Longford, Westmeath, Wicklow, and Derry. In Limerick, this name has later been ennobled with the titles of Barons Adare and Earls of Dunraven.  

In 1095, Augustin O’Quinn, Chief Brehon of Leinster, died of the plague. In 1188, Edwina, commemorated as ‘daughter of O’Quin of Muinter-Iffernan in Thomond (Clare) and Queen of Munster,’ died during her pilgrimage at Derry, ‘victorious over the world and the devil.’ In 1252, Thomas O’Quin served as Bishop of Clonmacnoise, as did John Quin of Limerick in 1505. The Patent Rolls record pardons to Thomas O‘Cuin in 1318, and to Maolmurry O’Coigne of Castlemartin in 1395. In 1402, King Henry the Fourth granted Thomas O’Coyne, clerk, ‘of the Irish nation and blood,’ the liberty to use English law and language. In 1404, David and John O‘Coygne from County Kildare were granted a license of pardon, and in 1413, Henry the Fifth granted James O‘Coyne, clerk, additional liberty to acquire lands in mortmain for religious uses. Walter Quinn of Dublin was the preceptor to Prince Henry, publishing an epitaph upon his death in 1613. The Act of 1612, which confiscated Ulster due to the attainder of the Earl of Tyrone and his confederates, included Murtogh O’Quinn, ‘late of Dungannon,’ and Teague Modder O’Quinn of the same place.  

Cromwell’s memorable Ordinance of 1652 excepted Brien Modder O'Quynne and Turlogh groom O