The document printed below has been preserved, somewhat unexpectedly among the series of Ministers’ Accounts in the Public Record Office, London. It is the account (or, more strictly. a record belonging to the process of auditing the account) of John Patrickschurch, clerk of wages on the expedition that Edmund Butler, the justiciar of Ireland, led in Munister between February and April 1317 against Robert and Edward Bruce and their Scottish army. The broad course of events during that critical period is well known. The Scots came south during February, approached Dublin, but, lacking the capacity to take it, continued south and west, ravaging the famine-stricken countryside. They eventually arrived at Castleconnell, by the Shannon just north of Limerick, apparently in the hope of benefiting from an alliance with the O'Briens of Thomond, one faction among whom had been in touch with them in Ulster The justiciar had moved south before the Bruces reached Dublin. He raised an army in Munster and proceeded to follow the Scots closely as they progressed through Tipperary. The royal army eventually encamped at Ludden, just south of Limerick. For some days the two forces confronted each other. Then Robert and Edward retreated. Their expectations of the O'Briens had proved vain; they were desperately short of supplies; and they may well have heard of the arrival of Roger Mortimer, the king's lieutenant, who had landed at Youghal, from where he set out on 11 April to join Butler and the army The document is of some interest for the light it can shed on military organisation and on the accounting procedures of the Irish exchequer But it is worth printing in full above all for the detailed information it contains about one of the darkest yet most decisive episodes of the Bruce invasion.