Ancient Laws Of Ireland V4 : Kessinger Publishing : 9781166005627 : 1166005623 : 10 Sep 2010 : The book ""Ancient Laws of Ireland V4: And Certain Other Selected Brehon Law Tracts (1879)"" is an extensive collection of ancient Irish laws and legal tracts, compiled and translated by John O'Donovan. The book is divided into four volumes and focuses on the legal system of early medieval Ireland, which was based on the Brehon laws. The Brehon laws were a complex system of customary law that governed every aspect of Irish society, from marriage and property rights to crime and punishment. In this book, O'Donovan presents a comprehensive overview of the Brehon laws, drawing on a wide range of sources including ancient manuscripts and historical records. He provides detailed translations of key legal texts, along with extensive commentary and analysis. The book also includes a number of other selected Brehon law tracts, offering further insight into the legal system of early medieval Ireland.