Kate Middleton meets an old teacher despite royal protocol

[{"selector":"#anim-1f7ffbf9-e2b7-461b-8cfa-8d453d4cbcfb [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(4.597701175399905%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-08d53c97-a044-467e-a69d-e61cba187de9","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0d2b5f55-ed38-4ef6-8759-226665236156","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Kate Middleton broke royal protocol by hugging her former history teacher, Jim Embury.

The reunion occurred during her visit to Cornwall on Thursday.

[{"selector":"#anim-217c0b1d-391e-461f-8eab-c447d4ab8399","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-70737436-d1e6-4108-b935-9a4f20aa3600","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c8bf4657-12a6-4d53-919d-535b93118bd8 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-8.885309028868168%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}]

Embury is now a volunteer at the National Maritime Museum in Falmouth.

[{"selector":"#anim-6d1596ea-a4ca-4c9f-818e-65c31c4880eb [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-12.161726574522541%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-deb506fe-ad58-4c2c-aeb3-7b9606540101","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-f73bd4c8-f5e9-47c1-b71e-d1dc0e3cddcf","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Embury taught Middleton at St Andrew’s prep school in Pangbourne, Berks in the 1990s.

[{"selector":"#anim-35c344b6-c99d-44bb-aac0-03dbdb9aed49 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(42.325975433611404%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-446e6b46-9987-48fc-8468-866573f687f6","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-eeff25d1-483f-4dba-ba97-dc5120b3a42e","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Middleton was overjoyed to see her former teacher and cried "oh my goodness" before hugging him.

[{"selector":"#anim-84b5ca2d-cea7-47d2-8e2f-01502e82abe1 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-017f2a5b-89d3-4719-b4b9-2365774c67a0","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-f590801b-85c8-4f7b-bf91-710712fb17b8","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Hugging fans during engagements is generally against unwritten royal rules.

[{"selector":"#anim-68d8c85e-a3d3-4f40-b5ff-c0970be2ae8c [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-29a70b78-b2d2-42de-8853-0839fe25ee47","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-afc6297e-3a90-4db8-bad1-cd3bfc04794d","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Royals are increasingly breaching this norm to interact with the public.

[{"selector":"#anim-472af2fb-b653-498d-ad88-b853f66c0d7a [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-02cfaa6e-c4a2-4016-8415-e581db18a374","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-96612d04-5b3e-4955-baca-3ff3354aed1e","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Last year, Middleton also broke the "no selfie" directive during a trip to Scotland.

[{"selector":"#anim-f4fdee86-da2f-4cdf-a5aa-65967b704b0f [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(10.726184464996802%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-762bc358-82a8-4dff-ad9b-0e91089da333","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-d3a4996f-02cf-4f54-b50d-ca0735519413","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]

Royals are not supposed to take photos with members of the public, but Middleton happily agreed to take a selfie with a fan.

[{"selector":"#anim-45efbb20-d322-4f48-bb30-b3cfacae8898 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(8.322039671118205%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-463b66da-653b-40ec-8e91-be0da60847ea","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-85a9f662-d15a-4cf8-9a21-1dda01d7bb09","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}]