Ireland and her border has been the biggest complication in the Brexit deal. My opinion? The bastards shouldn’t have invaded us in the first place.
I quite agree. The Irish should also not have invaded Scotland and formed Dal Riata. The Normans should not have invaded England and created the seeds of an extended Angevin empire. Britain should not have invaded [Insert Country], America should not have invaded [Insert Country], China should not have invaded [Insert Country], Germany should not have invaded [Insert Country].
Though, as invasions go, the initial "invasion" of Ireland was rather tame. King Henry II had permission from the Pope to both claim Ireland and civilise it, a fact perhaps not appreciated now but which at the time made any intervention more than justifiable. He allowed an exiled King of Leinster to recruit his knights and sat back. Diarmat (the exile) offered a de Clare his daughter's hand as payment for help reclaiming his kingdom. Strongbow, as he came to be known, accepted and was on the reconquest of Diarmat's kingdom named his heir and succeeded to the kingdom.
So far perfectly legitimate.
Henry II got worried that one of his under-boys would get uppity and start his own Kingdom, much as his Norman ancestors had. He went over with a considerable force (arguably to escape Papal displeasure over the killing of Becket) and received the fealty of this Strongbow of the Anglo-Norman-Irish Kingdom. He then proceeded to exercise his God-given right to Ireland. The Irish clergy were over joyed at this cease to the perpetual turmoil which had gripped them, and wrote approvingly to the Pope. King Henry II named John his son as Lord of Ireland, a title beholden to the English crown but not belonging to it. Gradually more and more Irish sub-kings swore fealty to John.
That John became King and the title Lord of Ireland was subsumed by the English crown was a matter of chance, in that John was the youngest of four* sons.
*Can't remember exact number of sons, but I think it was four. Geoffrey, Richard, John and Henry.
Anywho, yes. Shouldn't have invaded and all, but as invasions go it was rather tame and remarkably legitimate for the times. It also seems to have granted King Henry the unwavering love of the Irish
clergy for his.... 'help'.