It is often asked, who trained who in the Star Wars stories. I’ve compiled a list of Jedi and Sith masters and their apprentices. I also note who killed who, and the list is roughly in chronological order:

• Darth Plagueis was master to Darth Sidious (Palpatine) and trained him as a Sith
• Darth Sidious betrayed and killed Darth Plagueis (while he was sleeping)
• Master Yoda was master to Count Dooku and trained him as as a Jedi
• Count Dooku was master to Qui-Gon Jinn and trained him as a Jedi
• Qui-Gon Jinn was master to Obi-Wan and trained him as a Jedi
• Darth Sidious trained Darth Maul as a Sith
• Darth Maul killed Qui-Gon Jinn (stabbed with lightsaber on Naboo)
• Darth Maul was killed by Obi Wan (cut in two by a lightsaber on Naboo)
• Obi-Wan Kenobi was master to Anakin Skywalker and trained him as a Jedi
• Sifo-Dyas asked the Kaminoans about creating a clone army for the republic
• Darth Tyranus (Dooku) killed Jedi Master Sifo-Dyas
• Count Dooku succumbed to the Dark Side and Sidious named him Darth Tyranus (with killing Sifo-Dyas his journey to the dark side was complete)
• Darth Tyranus erased all mentions of Kamino from the Jedi archives and recruited Jango Fett as the template for the clones
• Darth Sidious trained Tyranus as a Sith
• Darth Tyranus trained General Grievous in the ways of the Dark Side (Grievous wasn’t really a Sith)
• Darth Tyranus was killed by Anakin Skywalker (beheaded on Grievous’s ship above Coruscant)
• General Grievous was killed by Master Obi Wan (shot in the heart on Utapau)
• Anakin Skywalker fathered Luke Skywalker (who was adopted and raised by his half-brother Owen and Owen’s wife Beru, on Tatooine)
• Anakin Skywalker fathered Leia Organa (who was adopted and raised by Senator Bail Organa and his wife, Queen Breha Organa, on Alderaan)
• Anakin Skywalker succumbed to the Dark Side and was named Darth Vader by Sidious
• Anakin Skywalker killed the members of the trade federation (including Nute Gunray) on Mustafar (and his embrace of the dark side was complete)
• Padme Amidala died in childbirth to Luke and Leia (and possibly as a result of injuries inflicted by Anakin)
• Luke Skywalker was trained by Yoda as a Jedi around 22 years later on Dagobah
• Darth Sidious was killed by Darth Vader around a year after that (Vader threw him down a deep shaft on the second Death Star near Endor)
• Darth Vader died as a result of the battle between him, Luke and Sidious (on the second Death Star near Endor).

Sources: “Star Wars: Labyrinth of Evil”, James Luceno, Chapters 22 & 26; and also Wikipedia