Forging Pseudo-Medieval Poetry

So, I was in Tate Britain and there was a nuclear mushroom cloud made out of stainless steel pots and pans.
It was big, it was impressive, it was shiny.
Technically arresting, I wasn't sure what it meant or what it was supposed to mean and I didn't really care.
Round the corner there was a painting, The Death of Chatterton, I'd seen it before and it had held my attention then just as it did now.
A precocious talent, Chatterton wrote poetry and -even more arrestingly- he forged pseudo-medieval poetry.
Wait a minute, he forged pseudo-medieval poetry? That was never mentioned to me as a career option.
Chatterton committed suicide aged 17 rather than die of starvation so I guess forging pseudo-medieval poetry didn't pay much back then.
It probably still doesn't pay much today but, sitting at my Formica desk staring at Excel spreadsheets day in day out, it feels like something I should look into.