A more thorough explanation:

CHARTAE LIBERTATUM

Charters of liberties. This term refers to two important documents that helped establish English liberties: Magna Carta and the Charta de Foresta.

One example of chartae libertatum is the Magna Carta, which was signed by King John of England in 1215. This document established certain rights for English citizens, such as the right to a fair trial and protection from arbitrary imprisonment.

Another example is the Charta de Foresta, which was signed by King Henry III in 1217. This document protected the rights of English citizens to use and access the royal forests.

The examples illustrate how chartae libertatum were important documents that helped establish certain rights and liberties for English citizens. The Magna Carta and Charta de Foresta were both signed in the early 13th century and helped to limit the power of the monarchy and protect the rights of the people. These documents were important precursors to modern ideas of democracy and individual rights.