Yes, of course.
Edward Longshanks i.e Edward I of England won the second barons war in 1266.
None
yes
There was indeed!
William the Conquerer brought roughly 200 to 300 french barons to England . Most people would have thought he would have brought much more .
Magna Carta
Very much so, and with the same countries by and large.
It did not really limit the power of the king, and it did not do away with feudalism: barons did much better under this document, but serfs were still serfs. The Magna Carta was an important first step towards giving rights to all citizens of England; but while in theory it provided for limitations on King John's power and gave the barons more rights, in practice the document was ignored and many of its provisions (even the ones the barons had hoped for) were not always enforced.
The French noblemen who followed William the Conqueror in his enterprise, were rewarded with English land grants in fief by the new king. They swore to William feudal oath becoming Barons of England.
Runnymede is the location where King John of England met the rebel barons and signed the Magna Carta.
Barons