Uh, Tygue isn't a fake name. I'm pretty sure it's a respelling of
Tadhg (pronounced like 'tiger' minus the 'er'), which is a very old, well known Irish name. And ditto on the
Cesar being a very common name. I daresay it's in the top 200 or 300 on the SSA list. And it's not pronounced the same as
Caesar, which would be bizarre.