Monk wars

Clonmacnoise

Thanks to BBC radio series A short history of Ireland (in 240 episodes) I now know that in 760,  the abbot of the monastery at Clonmacnoise led his monks against those at Birr, and 200 died in the ensuing battle. They were at it again in 764. More here.

History xls: the history of the world in a spreadsheet