Having lived in "sin", on and off, for seven years, the thoroughly modern royal couple of Prince William and Kate Middleton will now channel the spirit of Princess Diana with a royal wedding next year. The Prince even gave his fiancé the elaborate engagement ring worn by Diana, his mother.
This is going to be big. But comparisons with Diana can only go so far.
Diana may have been beautiful, beloved, photogenic, warm and shrewd, but she could never be mistaken for clever. She was also neurotic.
But Middleton is smart. Beautiful in an understated way, with a glorious and unashamed mane.
University-educated: St Andrews, after schooling at Marlborough College. She has always been cautious in her dress, demeanour and public conduct. No scandal attaches to her name. She reflects well on William.
None of this will inhibit Fleet Street, which conducts journalism as a blood sport, and regards every royal as a fox fit for the hunt.
Even The Daily Telegraph, the loyalist royalist rag, describes Middleton today as, "a cautious, painfully immaculate dresser in a manner that might be deemed conservative for a Tunbridge Wells school run. For a girl of 28, it suggests a case of fashion constipation . . . The thinking appears to have been not 'What would I enjoy wearing?' but 'How would this sit on a commemorative plate'?"
There will be so much commemorative kitsch. "Prince William and Miss Middleton became engaged in October during a private holiday in Kenya," Prince Charles said in a statement overnight, announcing a union that follows his own ground-setting marital drama - the prolonged estrangement from, and public dumping of, Diana, the Princess of Wales, while conducting an affair with a married woman, now his wife, Camilla, the Duchess of Cornwall.
His son's wedding will further broaden (some traditionalists might say further debase) the standards of what is acceptable in society, unlike the travails of Sarah (Ferguson), Duchess of York.
This process is proving as painless as the arrival of Australia's first de facto first couple, Prime Minister Julia Gillard and Tim Mathieson, a former hairdresser and hair products salesman, now the occupants of The Lodge.
The royal wedding of the second in line to the throne will provide a frenzy of distraction from a nation plodding through economic stagnation, high unemployment and the hangover from a spending and borrowing binge.
Whatever one may feel about the British royal family, or the idea of royal bloodlines in general, the English Crown and aristocracy are inextricably coiled around British history and tradition in a way that transcends politics, class and cultural evolution.
This will also be a modern, working marriage. The Prince lives in a cottage near a Royal Air Force base in Wales where he is on a three-year posting as a search and rescue helicopter pilot.
Officially, Middleton still lives with her parents in Berkshire, where she also has a job, working for the family business, a website called Party Pieces. All of which limits, rather than magnifies, the perception of the royals as being "different".