Caroline's infant brother Patrick died at two days old and her younger adult brother John jr died in a plane crash in 1999.

Source: https://www.dailymail.co.uk/news/article-11611369/US-ambassador-Caroline-Kennedys-surprise-Summernats-appearance-Australia.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

Caroline's youngest son, Pierre Casiraghi and his wife Beatrice Borromeo, and their sons Stefano Casiraghi and Francesco Casiraghi also took to the balcony to wave at those gathered below.

Source: https://www.dailymail.co.uk/femail/article-12771719/Princess-Charlene-wows-ruby-gown-Prince-Albert-attend-glitzy-gala-celebrate-Monaco-National-Day.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

Paul admitted he was nervous, telling the camera before Caroline's arrival: 'You don't know if it's nature-nurture, right?'

Source: https://www.dailymail.co.uk/femail/article-12244579/Viewers-break-tears-Long-Lost-Family-Born-Without-Trace.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

Queen Caroline's Temple: Neatly tucked away in the greenery of Kensington Gardens, overlooking the Long Water, this looks like a miniature stately home.

Source: https://londonist.com/london/things-to-do/things-to-do-in-hyde-park