The House of FitzGerald is a prominent noble family in Ireland, with roots tracing back to the 12th century. They played a significant role in Irish history, particularly in the province of Leinster. The family is known for its involvement in various political and military events, including the Desmond Rebellions and the Nine Years' War. Members of the FitzGerald family held titles such as the Earl of Kildare and the Duke of Leinster. Their influence extended beyond Ireland, with connections to the English crown. The family's legacy includes contributions to architecture, such as the construction of Kilkenny Castle and Carton House.