General:
http://www.nydailynews.com/news/world/history-memorable-traitors-article-1.2368971
https://list25.com/25-most-hated-backstabbing-traitors-in-history/
http://all-that-is-interesting.com/famous-betrayals
http://topyaps.com/7-betrayals-biggest-traitors-history

Judas:
http://www.beliefnet.com/faiths/christianity/2006/04/faqs-judas-iscariot.aspx

Brutus:
http://www.apricotpie.com/kyleigh/a-tragic-hero
Guy Fawkes:
http://www.history.com/news/guy-fawkes-day-a-brief-history
La Malinche:
http://www.ancient-origins.net/history-famous-people/controversial-role-la-malinche-fall-aztec-empire-traitor-or-hero-005284

Benedict Arnold:
https://www.smithsonianmag.com/history/benedict-arnold-turned-traitor-american-revolution-180958786/

Mir Jafar:
https://www.mapsofindia.com/who-is-who/history/mir-jafar.html
https://en.wikipedia.org/wiki/Mir_Jafar

Alfred Redl:
https://www.warhistoryonline.com/world-war-i/colonel-redl-spy-destroyed-austro-hungarian-empire.html
Vidkun Quisling:
http://www.jewishvirtuallibrary.org/vidkun-quisling
Tokyo Rose:
https://www.biography.com/news/toyko-rose-iva-toguri-facts

The Rosenbergs:
http://www.history.com/this-day-in-history/rosenbergs-executed