Princess Kate key to monarchy's survival, says expert

Former royal butler Paul Burrell claims the Royal Family's future "rests on" Princess Kate.

[{"selector":"#anim-4e5f8aa9-d19a-4c44-9589-1c51217dfd86 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-4.015151529769785%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-f66ad891-477c-4124-897b-5ea61ed6c1d0","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-9f9cdd0a-2aa5-4474-aeec-315f835d19ae","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Burrell stated that Kate holds the same role as Princess Diana as the future queen.

[{"selector":"#anim-42b3318a-be4c-4a00-8667-fbd592fd8418 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-18.502824921554613%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-b78564da-51f1-4dbc-9987-03d2efded9c9","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-9b10805d-7a17-48e2-a5de-05abd95627e2","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

The future of the monarchy is down to Kate, and the royal family would collapse if she decided to leave her marriage.

[{"selector":"#anim-9c1f4aa0-0340-4b91-a268-d1978eabf7c6 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-7fb68842-4ed2-49f6-9832-d1dd7c2acced","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-efee1cdd-e606-4d6e-bbaf-79c5e464836b","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Kate joined Prince William and senior members of the Royal Family for a royal engagement on Commonwealth Day.

[{"selector":"#anim-1a934639-d909-4ce0-a81c-7c8a4c50d3a4","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-f60cb948-5bea-4998-8a1a-dd55bd67f19a","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-d6de1a0b-5b3c-4ba6-87cf-a4e7e6075544 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-5.225988718301686%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Judi James, a body language specialist, says Kate and William had "flirtatious" moments during the service.

[{"selector":"#anim-772cac3f-c9ca-413b-9ca3-102dde80c96b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-22.334058085901212%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-dda6bd46-26ed-41be-a3de-f1a69ab34878","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-bd54e289-f84c-46e1-946c-d9b9a4645ea4","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Kate was bestowed the Princess of Wales title, previously held by Diana, in September.

[{"selector":"#anim-732b1a08-9b5c-4f6d-805f-12127e9eefec [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(16.329146242050413%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6db31eb1-af91-498d-abf4-d7a278e429b0","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-118e66ac-a1d7-4e83-92a7-49706cdbd5cc","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Upon ascending the throne, the King granted Prince William the title of Prince of Wales.

[{"selector":"#anim-7606f537-cbfd-4828-8be4-b850b6d38540 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-f9dd603d-3c23-4402-9c6d-bc2f8fb2ed17","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-6af2c10c-7657-4842-afa5-514456f18c83","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

[{"selector":"#anim-f409a8a0-3b4c-4a6b-af4c-f9796e2010a0 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-18.644067859887095%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-49c1e49d-9ca6-4a95-b470-a526a0838c86","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-da65bb4f-fc8a-4fd1-bc10-a08a403038df","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Despite occasionally attending royal engagements with their children, Kate and William spent Commonwealth Day alone.

The couple also shares Prince Louis, who will turn five next month.

[{"selector":"#anim-8a3458ca-b6de-4930-a1ba-772a9beccd50 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6d8f47cb-c554-4667-bcec-c3d5e2a6fb42","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-f46c7db2-4153-421d-b898-32e9d6955cd8","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]