Lost to the world of scholarship since the 18th century, it has not been in Ireland since the 16th century, and it is the first Irish medieval manuscript to be offered for public sale in over 100 years. TCL is thought to have paid about a quarter of a million euros to secure the purchase.
St Mary's was the wealthiest monastic house in medieval Ireland and important enough to host parliament on many occasions.
TCL intend to digitise the manuscript, as well as use it to promote research and scholarship and popular interest. You can find out more in the 5-minute video below.