Answer:
A handful has been appointed from outside Parliament, but in most cases, they entered Parliament in a by-election or received a peerage (being made a peer).
Step-by-step explanation:
The origins of the House of Commons date from the second half of the 13th century, when landholders and other property owners in the counties and towns began sending representatives to Parliament to present grievances and petitions to the king and to accept commitments to the payment of taxes.