In 1648 a group of merchants in London applied to Parliament for revocation of the Maryland charter from the Calverts. This was rejected, but Claiborne received a final opportunity to reclaim Kent Island when he was appointed by the Puritan-controlled Parliament to a commission which was charged with suppressing Anglican disquiet in Virginia; Virginia in this case defined as "all the plantations in the Bay of the Chesapeake." Claiborne and fellow commissioner Richard Bennett secured the peaceful submission of Virginia to Parliamentary rule, and the new Virginia Assembly appointed Claiborne as Secretary of the colony. It also proposed to Parliament new acts which would give Virginia more autonomy from England, which would benefit Claiborne as he pressed his claims on Kent Island. He and Bennett then turned their attention to Maryland and, arguing again that the Catholic Calverts could not be trusted and that the charter gave the Calverts too much power, demanded that the colony submit to the Commonwealth. Governor Stone briefly refused but gave in to Claiborne and the Commission, and submitted Maryland to Parliamentary rule.