The groups that fought wars from mid 1300s to 1485 were the house of Lancaster and house of York.
These two houses were involved in the war called the war of the roses. These two noble houses were factions that fought over the British throne.
The wars became very bloody with time. Initially the struggle was over the King who was mentally ill. With time it became about who would take over the throne.
The war only came to an end after the house of Tudor took over the throne.
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