It's another day at home, at school, or at work. You open your social media feed and see another inspirational post from that fitness page you follow. There's a picture of a thin woman with popping abs who tells you that if you don't start working towards your goals today, when will you ever? You want to be healthy, right? You want to look great, right? Then get on the treadmill now! Put that donut down right this instant! Don't tell yourself you'll start tomorrow or in a week or in a month!
Frederick II, Holy Roman Emperor, was a strange chap who was given to doing strange things. Born in 1194, he became Holy Roman Emperor (a very odd institution that was neither holy nor Roman, and hardly an empire either) in 1220. He was already the King of Sicily (since 1198) and King of Germany (since 1212). He would also gain the title of King of Jerusalem in 1225, as part of a deal to get him to go on a crusade to the Holy Land – he eventually set sail on the Sixth Crusade in 1228 but soon turned back on claiming to be unwell.