Who is Mashiach?

Hi,

"If a king arises from the house of David, and he studies Torah and is involved in mitzvot as was David his ancestor, following the written and spoken Torah, and he compels all of Israel to walk in its ways and strengthen it, and he fights the wars of G-d, then it may be assumed that he is Mashiach."

(Rambam, Mishneh Torah, Laws of Kings 11:4)

Have a great day,
Mordechai