A long time ago in a galaxy far, far away....
Ki-Adi-Mundi died in 19 BBY.
Ki-Adi-Mundi is best remembered as one of the steady, sometimes skeptical voices of the Jedi High Council in the Republic's last years, and as a Jedi whose career spanned more than a century. In 132 BBY, during the High Republic, he was a newly made Master who sat on the tactical council Vernestra Rwoh called to discuss the assassin Mae. Decades later he held a Council seat of his own. There he taught younglings alongside Yarael Poof, pushed back on Qui-Gon Jinn's calls for more outreach, and in 32 BBY famously insisted that the Sith had been extinct for a millennium. He survived the arena battle on Geonosis that began the Clone Wars and became a Jedi General. He took scars from an early clash with General Grievous and led the northern assault in the Second Battle of Geonosis, where he topped Anakin Skywalker and Ahsoka Tano with 65 kills. On the Council he took a hard line, arguing against intervening on neutral Mandalore and personally telling Ahsoka Tano she had been expelled after the Temple bombing. In 19 BBY, while commanding the 21st Nova Corps in the Mygeeto campaign, he was gunned down by his own clone troopers when Order 66 was issued. His lightsaber survived him and ended up with the collector Dok-Ondar.
Ki-Adi-Mundi is born on Cerea. Canon gives no birth year, so this is an estimate based on his being a newly raised Jedi Master by 132 BBY. He trains in the Order under Yoda.
As a newly elevated Jedi Master, he joins Vernestra Rwoh's tactical council, reviews footage of Mae fighting Master Sol, and warns that she could become a major threat.
He gives the eulogy at Master Katri's funeral at the Jedi Temple after she is killed on Raxus Secundus.
Now a Council member, he teaches younglings alongside Yarael Poof, hears Qui-Gon Jinn's proposal to engage more with the galaxy, dismisses it as extreme, and later takes part in the outreach mission to Kwenn.
He tells Qui-Gon Jinn that the Sith have been extinct for a millennium, sits on the Council that evaluates young Anakin Skywalker, and attends Qui-Gon's funeral on Naboo.
He travels with a Republic task force that rescues Obi-Wan Kenobi and Anakin Skywalker and ends the Open-Closed War.
He meets with Chancellor Palpatine about the Military Creation Act and dismisses Count Dooku as a political idealist rather than a murderer.
He joins Mace Windu's strike team in the Petranaki Arena, is one of the few Jedi to survive the fighting, and escapes on Yoda's gunships as the Clone Wars begin.
He shares a toast with his old friend Mace Windu, sits in judgment on the traitor Prosset Dibs, and is scarred by General Grievous in an early encounter.
He leads the northern prong of the assault on the ray shield generator, survives a gunship crash, fights his way through a cave full of Geonosians, and finishes with 65 kills before being treated in a bacta tank.
He helps hunt Poggle, then escorts him to Coruscant as the brain worm crisis unfolds on Ahsoka Tano and Barriss Offee's ship.
He watches Grievous's transmission showing the captured Eeth Koth, Maul's massacre on Raydonia, and other emergencies, and attends Obi-Wan Kenobi's staged funeral.
He argues that the Jedi cannot help Duchess Satine Kryze, because intervening on neutral Mandalore would be treated as an act of war.
After the Jedi Temple hangar bombing, he votes against protecting Tano and formally tells her she has been expelled. He later invites her back after she is cleared, but she refuses.
He is skeptical when Yoda claims Qui-Gon Jinn's spirit has contacted him, and suspects a Sith attack instead.
He takes part in the Council's decision to rescue Quinlan Vos, who had turned to the dark side under Dooku as "Admiral Enigma."
While leading the 21st Nova Corps in the Mygeeto campaign during the Outer Rim Sieges, he is shot down by his own clone troopers when Order 66 is issued.
His lightsaber ends up with the collector Dok-Ondar on Batuu, who tells part of its history to a First Order sergeant.