Taubeke Question

I have a question about the given name, "Taubeke," which appears to be a german name given to a girl or a boy in the Oldenburg area during the 1700s or earlier.

Is this spelling correct?

Why is it given to either a girl or a boy?

What does it mean?

It appears that sometimes, the "b" is a "p" - is this true?

Thank you for your assistance.