The article suggests that Ireland’s 1640 crisis was shaped not simply by religious division, but by disputes over how royal authority operated in practice. The Commons’ attempt to influence subsidy collection, followed by Wandesford’s removal of parliamentary journal entries, made procedure itself a test of trust. This is especially revealing because Catholic and Protestant critics could oppose Straffordian methods while retaining different interests and loyalties. The episode may therefore illuminate why constitutional grievances could connect Irish politics to events in England and Scotland without producing a unified programme. How far did conflicts over taxation, parliamentary records reshape cooperation in Ireland?