 Complete the following phrase:  During the Irish Rebellion of 1641, Obins Castle was captured by a force of dispossessed Irish led by the McCanns, Magennises and ONeills. In November 1641, Irish rebelslikely under the command of Toole McCannkilled about 100 captured British settlers by forcing them off the Bann bridge and shooting those who swam ashore. This became known as the Portadown massacre and was one of the worst atrocities of the rebellion. It fuelled revenge killings during the 