en.wikipedia.org/wiki/Magna_Carta

Magna Carta Libertatum commonly called Magna Carta is a charter of rights agreed to by King .... During the negotiations, the rebellious barons produced an initial document, which historians have termed "the Unknown Charter of Liberties ", ...

en.wikipedia.org/wiki/Charter_of_Liberties

The Charter of Liberties, also called the Coronation Charter, was a written proclamation by Henry I of England, issued upon his accession to the throne in 1100.

www.bl.uk/collection-items/the-unknown-charter

Explore 'The Unknown Charter', a manuscript on the British Library's Magna Carta website.

www.jstor.org/stable/pdf/548573.pdf

SOME years ago Mr. J. H. Round printed in this Review a document which he entitled ' An Unknown Charter of Liberties.' The date and the signification which he ...

oll.libertyfund.org/titles/338

THE SO–CALLED “UNKNOWN CHARTER OF LIBERTIES” OF JOHN.2 ...

www.bbc.co.uk/history/british/middle_ages/magna_01.shtml

Feb 17, 2011 ... Ironically, their demands were based upon the so-called 'Unknown Charter' developed from the laws of Henry I. In their efforts to break away ...

www.educationnext.org/the-unknown-world-of-charter-high-schools

Charter schools have become a popular alternative to traditional public schools, with some 5,000 schools now serving more than 1.5 million students, and they ...

magnacarta.cmp.uea.ac.uk/read/magna_carta_1215/Clause_10?com=aca

Article 34, like Clause 11 of the `Unknown Charter', which was probably drawn up during negotiations between King John and the barons in the months before ...

academic.oup.com/ehr/article/CXXIII/503/811/457489

Jul 25, 2008 ... A copy of this charter has surfaced in Paris at the Archives Nationales to which is attached the “Unknown Charter” of King John that responds ...