The Irish Peerage refers to the system of nobility in Ireland, which includes titles such as duke, marquess, earl, viscount, and baron. These titles were historically granted by the British monarch and were associated with land ownership and governance. The peerage system played a significant role in Irish society, particularly from the 17th century until the early 20th century. Although the Irish Peerage still exists, it has largely become ceremonial since the establishment of the Irish Free State in 1922. Many titles are now held by descendants of the original peers, but they no longer carry political power. The peerage remains a part of Ireland's cultural heritage, with some titles still recognized today.