AHC: Maximum british island invasions

Starting from 1066, make a few paragraph TL with the maximum (realisticly) amounts of invasions from the mainland onto Britain from that year until now.
 
In the early 13th century, English Knights somehow manage to win a prolonged series of tournaments. They do so well, in fact, that the King of England decied to hold a grand scale international tournament in England annually, with full royal backing. Soon, Knights from across Europe flock to it to prove their mettle on the 'Field of St George'.

Unfortunately, the 100 Years' War came, disrupting relations between England and France. For 'honourable' (or 'eccentric', depending on your point of view), King Edward decided at the start of the year to continue to hold the Field of St George. Unfortunately, despite recieving a respectable number of foreign jousters, in the year 1400 a group of French knights gatecrashed it in disguise; and, in a much celebrated incident, defeated the English King in a joust just before he was about to must his army and set sail for another campaign season in France. The King, in the chivalrous spirit of the times, was allowed to live-but not before paying the French knights involved (led by the famous Boucicaut) a significant ransom 'for such men of valour'. The descendants involved have returned every year, ever since, bedecked in full armour, to commemorate this splendid event, in what has been jokingly dubbed an 'invasion'.

This was discontinued in WWII, although some of the descendents did try to escape the Continent as members of the French Resistance; two died in a concentration camp as a result.
 
congrats Awilla, this would be more than 700 "invasions." You´ve won a golden herring.

But I guess if we keep all butterflies out of it (like by having WWII though it might be a different one), I guess during Napoleon it´d have to be discontinued as well.
 
Welll, I don't think the butterflies are that big. And it could potentially keep going in Napoleon's time as part of his reconciliation with the French nobility (now his nobility. Or even with fleeing emigres staying in Britain for a time.) The borders weren't exactly watertight.
 
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