A media proprietor is a person who controls, either through personal ownership or a dominant position in any media enterprise. Those with significant control of a public company

Public company

This is not the same as a Government-owned corporation.A public company or publicly traded company is a limited liability company that offers its securities for sale to the general public, typically through a stock exchange, or through market makers operating in over the counter markets...

 in the mass media

Mass media

Mass media refers collectively to all media technologies which are intended to reach a large audience via mass communication. Broadcast media transmit their information electronically and comprise of television, film and radio, movies, CDs, DVDs and some other gadgets like cameras or video consoles...

 may also be called "media mogul

Business magnate

A business magnate, sometimes referred to as a capitalist, czar, mogul, tycoon, baron, oligarch, or industrialist, is an informal term used to refer to an entrepreneur who has reached prominence and derived a notable amount of wealth from a particular industry .-Etymology:The word magnate itself...

s", "tycoons", "baron

Baron

Baron is a title of nobility. The word baron comes from Old French baron, itself from Old High German and Latin baro meaning " man, warrior"; it merged with cognate Old English beorn meaning "nobleman"...

s", or "bosses".

The figure of the media proprietor first became prominent in the 19th century with the development of mass circulation newspapers.

In the 20th century the definition of proprietorship expanded to include ownership of radio

Radio

Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

 and television

Television

Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...

 networks, as well as film studios, publishing houses and more recently internet

Internet

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...

 and other forms of multimedia

Multimedia

Multimedia is media and content that uses a combination of different content forms. The term can be used as a noun or as an adjective describing a medium as having multiple content forms. The term is used in contrast to media which use only rudimentary computer display such as text-only, or...

companies. The term "press baron" was replaced by "media" baron, reflecting this.