Why does the Royal Doulton have the word ‘Royal’ in the name?

“Royal Doulton” dates to 1901. The company states that it received a Royal Warrant and permission to use the word “Royal” in its name at that time. Collectors often treat 1901 as a dividing line, as earlier pieces may read “Doulton” or related factory names, later pieces often carry “Royal Doulton,” frequently paired with well-known backstamps. If you’re trying to place a piece in the company’s timeline, spotting “Royal” on the mark is a first clue, then you can narrow the date range by comparing the exact stamp style and wording.