princess royal


noun

the eldest daughter of a king or queen.
(in Great Britain and, formerly, Prussia) an eldest princess to whom this title has been granted for life by the sovereign.

Origin of princess royal

First recorded in 1640–50

British Dictionary definitions for princess royal

princess royal

noun

the eldest daughter of a British or (formerly) a Prussian sovereign: a title not always conferred
(capitals) the title of Princess Anne