Tolong jelaskan mengenai Gelar dan gaya dari Pangeran John dari Britania Raya

1905–1910: Yang Mulia Pangeran John dari Wales

1910–1919: Yang Mulia Pangeran John

ROYALTY DIGEST: A Journal of Record, "REFLECTIONS ON THE 'LOST PRINCE,'" by Charlotte Zeepvat (from Issue no. 141, Volume XII, number 8)

The Times (London) Weekend, 11 January 1998

Daily Mail (London), 20 February 1998