Faery v. Elizabeth I

I borrowed an ebook and cannot remember the title though I remember that it pits the fey against the Tudor court. it was a Young Adult book.

Any ideas?

Midnight Never Come fits the description but not YA. The Perilous Guard is the one Elizabethan YA with fairies I know of but I'm sure there are others.

I too was going to suggest Perilous Gard (or is it Perilous Guard?)

There's also This scepter'd isle and sequels, though not strictly YA either.

Ink and Steel and Hell and Earth also fit the description, but like the others the duology isn't YA.

Thank you all--I am thinking it may be Midnight Never Come. Why I thought it YA, can't recall.