Basing on the fact that he was around when the demon prison was made, and that he had his third horn at that point. So was probably like 12-15 human years... Scratch that.

So bracken in terms of experience is probably around 30,000.

Wow... And that's a child to unicorns.

That makes the fairy queen probably somewhere between 80 and 100 thousand years old, at minimum.

And that is... Honestly... Unicorns are old as dirt.

Even their children have lived longer than western Civilization has existed.

No wonder they have so few children too, no doubt any cycles they have (the female unicorns) are either very very spaced out, or super short. So they don't have many opportunities to have children. Maybe the longer you live the less kids you get?

Anyways, I now want to analyze the rough ages of all the magical beings.