Only the decimalisation question wrong. I'm too young to remember the old Harry Potteresque money: 12 pennies to the shilling, 20 shillings to the pound and 17 sickles to the galleon
I'd say seven or eight (depending on interpretation) of the questions are not English-specific, and an additional one is about Roman Britain, which predates England and the UK (as political entities), so it is British (but with some English bias).
Adam Smith was born in Kirkcaldy, not Edinburgh. He lectured in Edinburgh, but actually spent most of his life in Kirkcaldy, it's also where he spent ten years writing his most famous work - "The Wealth of Nations". I'm from Kirkcaldy and it's literally our claim to fame so people who says he's from Edinburgh annoy us just a teeny little bit.
The Lionheart
The Atheling
All people
"HIS" - automatically eliminates two of the choices since they are obviously female
I love Fife as much as the next man, but you'd be really testing people's knowledge to involve Kirkcaldy in this quiz.
I get the frustration though!