Battle Royal!
Operation Sea Lion was the German Plan to invade the United Kingdom in 1940. But thanks to the Battle of Britain, the Germans never obtained the air superiority they needed for this to happen.
The Order of St John is widely believed to have been started in the year 1080 in Jerusalem. This was during the First Crusade where St John members were known as the Knights Hospitallers (or Knights of St John). The Order of knights worked closely with the Knights Templar and provided assistance to injured soldiers and pilgrims during the Holy Wars. The Order of St John was later sanctioned by Her Majesty Queen Victoria and made a Royal Order of Chivalry with a Royal Charter. Even today, the Order of St John is one of the oldest and most well known organisations around the world.
The sea lion you are probably referring to is Operation Sea Lion. Operation Sea Lion was the German plan to invade the island of Great Britian. The plan was an amphibious invasion after the Luftwaffe, the German Air Force, had bombed the British into submission. But the bombing campaign failed and Operation Sea Lion never happened.
Royal Defence Corps was created in 1917.
Royal Order of the Seraphim happened in 1748.
Order of the Norwegian Lion happened on 1904-01-21.
Order of the White Lion happened on 1922-12-07.
Royal Victorian Order happened on 1896-04-21.
Royal Norwegian Order of Merit happened in 1985.
Royal Order of Sahametrei happened on 1948-09-09.
Royal Guelphic Order happened on 1815-04-28.
Order of the Gold Lion of the House of Nassau happened on 1858-03-31.
Royal Lion Hotel was created in 1610.
Royal Family Order of King George V happened in 1910.
Royal Family Order of King George VI happened in 1936.
Royal Family Order of King Edward VII happened in 1901.