Plo Koon died in 19 BBY.
Plo Koon was a Jedi Master who served as a member of the Jedi High Council during the last years of the Galactic Republic. He served as a respected Jedi General during the Clone Wars, a pan-galactic conflict between the Republic and its splinter state, the Confederacy of Independent Systems. During the war he frequently undertook dangerous missions with the soldiers under his command, the 104th Battalion.
You can see Plo Koon in:
- Episode I: The Phantom Menace, 32 BBY (68 years old)
- Episode II: Attack of the Clones, 22 BBY (78 years old)
- The Clone Wars (TV series), 22 BBY (78 years old)
- The Clone Wars (movie), 22 BBY (78 years old)
- Episode III: Revenge of the Sith, 19 BBY (81 years old)