9 years old.
Mace Windu was 40 years old in The Phantom Menace, 50 years old in Attack of the Clones, and was 53 when he died in Revenge of the Sith.
In The Phantom Menace (I), it shows C-3PO partially finished and that Anakin built him when he was only 10 years old.
Qui Gon Jinn was killed on Naboo by Darth Maul in Episode I: The Phantom Menace.
In "The Phantom Menace," he is played by Jake Lloyd. In "Attack of the Clones" and "Revenge of the Sith," he is pleayed by Hayden Christensen. In "Return of the Jedi," he was played by Sebastian Shaw (but in the 2004 re-release, Hayden Christensen replaced the Force ghost of Anakin.) In the old Clone Wars micro-series, he was voiced by Mat Lucas. In the new 3D CGI-animated Clone Wars, he is voiced by Matt Lanter.
Luke Skywalker had only one son, Ben Skywalker (named in honor of Obi-Wan "Ben" Kenobi). As to the events, there's tons of media including novels, graphic novels, comics, etc. that tell the events after Return of the Jedi.
Darth Vader is approximately 45 years old in "Episode VI: Return of the Jedi." He was born as Anakin Skywalker in "Episode I: The Phantom Menace" and turned to the dark side in "Episode III: Revenge of the Sith."
Yoda is around 900 years old in "Star Wars: Episode I - The Phantom Menace."
Anakin Skywalker was nine years old in episode one.
The Phantom Menace is about continuation of Star War story -Two Jedi Knights escape a hostile blockade to find allies and come across a young boy who may bring balance to the Force, but the long dormant Sith resurface to reclaim their old glory.
Mace Windu was 40 years old in The Phantom Menace, 50 years old in Attack of the Clones, and was 53 when he died in Revenge of the Sith.
In The Phantom Menace (I), it shows C-3PO partially finished and that Anakin built him when he was only 10 years old.
Because The Phantom Menace took place 32 years before the events in A New Hope and Anakin was only 9 years old in The Phantom Menace
Qui Gon Jinn was killed on Naboo by Darth Maul in Episode I: The Phantom Menace.
The movie after 'The Phantom Menace' in the Star Wars Saga is Attack of the Clones.
Well, technically, Luke Skywalker didn't kill the Emperor: Darth Vader (now brought back to his original self: Anakin Skywalker) did. But Luke was 23 years old at the time
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he dies of old age