Are Coats of Arms only linked to the crown?

Are Coats of Arms only linked to the crown?

Peter O'Donoghue (Bluemantle Pursuivant ) gives expert video advice on: What is a Coat of Arms?; Can anyone have a Coat of arms?; Where would they come from? and more...

In medieval times; nobles, knights, and the members of the gentry would assume their own Coats of Arms. Then in the 15th century, the Coats of Arms were brought increasingly under the control of the crown, and since that period, they've only been linked to the crown under the Royal proxy of the United Kingdom.