don't edit the name in [], just the one in {}

I don't know if you can add a completely new name but i would just edit an existing one like so...

["Cromwell"] {"Hack"}
["Pole"] {"Pole"}
["Talbot"] {"Talbot"}
["Stanley"] {"Stanley"}
["Roos"] {"Roos"}
["Mobray"] {"Mobray"}
["Grey"] {"Grey"}
["Plantagenet"] {"Plantagenet"}
["Bourchier"] {"Bourchier"}
["Courtnay"] {"Courtnay"}
["Fitzalan"] {"Fitzalan"}
["Stafford"] {"Stafford"}
["Scrope"] {"Scrope"}


this has always worked for me anyway.