At the outbreak of civil war in 1641, a conspiracy of the Irish septs, under the direction of Roger Moore, to seize Dublin Castle, was disclosed by one Owen Connolly on the eve of the day on which the attempt was to have been made, and the city was thus preserved for the king's party; but the Irish outside began an indiscriminate extermination of the Protestant population.
Connolly and Burkitt in Journal of Theological Studies (1905) pp. 5 22 -539; (1906) pp. 10 -15.
In January 1774 it was occupied by an armed force under Dr John Connolly, a partisan of Lord Dunmore, governor of Virginia, and by him was named Fort Dunmore (which name, however, was never formally recognized), this being one of Dunmore's overt acts ostensibly in support of his contention that the Fort Pitt region was included in Augusta (disambiguation)|Augusta county, Virginia.
In the following April Connolly took forcible possession of the court-house at Hanna's Town (near the present Greensburg), the county-seat of Westmoreland county (which then included the Fort Pitt region), a few days afterwards arrested the three justices who lived in Pittsburg, and for the remainder of the year terrorized the settlement.