magnate

A powerful or influential person, especially in business or industry.

A person of rank; a noble or grandee; a person of note or distinction in any sphere: as, a railroad magnate.

Specifically

One of the members of the upper house of the Diet of Hungary, called the House (or Table) of Magnates. It comprises certain hereditary peers, high state dignitaries and ecclesiastics, life peers, etc.

A person of rank; a noble or grandee; a person of influence or distinction in any sphere; — used mostly of prominent business executives.

One of the nobility, or certain high officers of state belonging to the noble estate in the national representation of Hungary, and formerly of Poland.

Metal object with flux.

Powerful industrialist; captain of industry.

A person of rank, influence or distinction in any sphere.

a very wealthy or powerful businessman