Lebor na Cert

{{Short description|Book of Early Irish laws}}

{{distinguish|Book of Rites}}

{{Use dmy dates|date=April 2022}}

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Lebor na Cert, or the Book of Rights, is a book of Early Irish laws, from medieval Ireland. The text details the rents and taxes paid by the King of Cashel, to various others in Ireland. The Great Book of Lecan,{{cite book |last=Welch |first=Robert |author-link=Robert Anthony Welch |year=2000 |title=The Concise Oxford Companion to Irish Literature |publisher=Oxford University Press |page=34 |isbn=9780192800800}} and the Book of Ballymote contain copies.[https://archive.org/stream/lebornacertbooko00dilluoft/lebornacertbooko00dilluoft_djvu.txt Full text of "Lebor na cert = The Book of rights"].

The Lebor na gCeart or the Book of Rights is a 12th-century text that details customs and practices of Irish nobility in the Middle Ages.[http://thewildgeese.irish/profiles/blogs/lebor-na-gceart-the-book-of-rights 'Lebor na gCeart' - The 'Book of Rights'].

It outlines the rights of all the monarchs in Ireland at the time and the revenue due them.John O'Donovan, The Book of Rights (Celtic society, 1847) [https://books.google.com/books?id=Kuk1AQAAMAAJ&q=The+Book+of+Rightspage&pg=PR34 page vi.][https://www.vanhamel.nl/codecs/O%27Donovan_1847 O'Donovan, John (ed. and tr.), Leabhar na g-Ceart, or the Book of rights, Dublin: Celtic Society, 1847.]

Myles Dillon describes the text:

''the book of rights purports to record the rights of the Irish

Kings, the King of Ireland, the provincial kings and the stipends due from the King of Ireland to the provincial kings... as in the book of Invasions the record is put into verse so the text consists, for the most part, of a collection of poems.[https://archive.org/details/lebornacertbooko00dilluoft Book of Rights (Introduction).]