Proper noun and me is what pronoun?

A proper noun is not a pronoun. A proper noun is a noun.

A noun is a Word for a person, a place, or a thing.

A proper noun is the name of a specific person, place, or thing.

The pronoun 'me' is a personal pronoun.

• A personal pronoun is a Word that takes the place of a noun for a specific person or thing.
• The pronoun 'me' is a first person pronoun, a Word that takes the place of a noun (or name) for the person speaking.
• The pronoun 'me' is a singular pronoun, a Word that takes the place of a singular noun.
• The pronoun 'me' functions as an object pronoun; the object of a verb or a preposition.
• The corresponding first person, singular, personal pronoun that functions as a subject in a sentence is 'I'.

Example uses:

I am Mary. (the noun 'Mary' is a proper noun, the name of a person)

Please join me for lunch. (the pronoun 'me' is the direct object of the verb 'join')

You can come with me. (the pronoun 'me' is the object of the preposition 'with')