Battle of Pinkie Cleugh

Still in the realm of Anglo-Scottish warfare this battle was fought today in 1547. According to the wiki
It was the last pitched battle to be fought between the Scottish and the English Royal armies and the first "modern" battle to be fought in the British Isles. It resulted in a catastrophic defeat for the Scots caused by the use of naval artillery by the English for the first time in a land battle in Britain. In Scotland, it was known as Black Saturday.^[5]