York Minster is the second largest Gothic cathedral of Northern Europe and clearly charts the development of English Gothic architecture from Early English through to the Perpendicular Period. Constantine was proclaimed Emperor of the Western Roman Empire while in York - then called Eboracum. York was the centre of the Roman Empire. The Rose Window, a stained glass masterpiece high in the South Transept of York Minster was added near the end of the 15th century to commemorate the end of the War of the Roses and honour the Tudor dynasty. York Minster’s ‘Heart of Yorkshire’ window, within the cathedral’s Great West Window is fast becoming the destination for love-struck couples who believe the local legend that kissing their partner beneath it means they will stay together forever.