Brendan Lahey is Seamus Harper's cousin, and his only known relation. Brendan and Seamus grew up together in Boston. After Seamus' parents died (one was shot, the other became ill), they rarely talked. In C.Y. 10088 he contacted Harper and asked for Andromeda Ascendant's help in starting a revolution against the Drago-Kazov Pride. However, even though Andromeda promised to come, she could not make it because she was engaged in an inter-pride civil war. The Boston Revolution was short lived, but a video that Brendan transmitted across the world as he was dying inspired the entire world to rise up and fight their oppressors. The revolution was put down, but the fight was long and bloody.