Political grouping of the era of the English Revolution?

During the English Revolution, there was a radical political grouping of Levellers. They advocated the overthrow of the monarchical form of government, for the establishment of a republican system in the country. They supported the introduction of suffrage for all men. They also advocated the equality of all people, justifying this by the fact that if everyone is equal before God, then in life, all people should also be recognized as equal.