I Can't Believe Star Wars Has Quietly Erased Darth Plagueis' Sith Master From Canon

[هَـ-ђāŵĩ-ـَاوِيتم التحقق من هَـ-ђāŵĩ-ـَاوِي كعضو.]

Star Wars has quietly erased Darth Plagueis' Sith Master, Darth Tenebrous, from canon. The future of Star Wars lies in the past; specifically, the High Republic Era, the golden age of the Jedi and the Republic. The Acolyte brought the tail-end of the High Republic Era into live-action at last, and even introduced two Sith of the time - including Palpatine's eventual master, Darth Plagueis. But who mentored Darth Plagueis?
Thomas Bacon

I Can't Believe Star Wars Has Quietly Erased Darth Plagueis' Sith Master From Canon

Tenebrous isn't canon after all!

screenrant.com