Under Rax's command, the Empire made its final stand at the Battle of Jakku in 5 ABY, ultimately losing to the New Republic and capitulating to it with the signing of the Galactic Concordance. The New Republic then formally replaced the Galactic Empire as the galactic government.
By the time of The Mandalorian, set five years after the Battle of Endor, the Galactic Empire no longer exists as an official government or a major power and is essentially a failed state.
Meanwhile, the Sith fleet was destroyed by the Resistance and their Citizens' Fleet above Exegol during the Battle of Exegol, resulting in the ultimate collapse of the Sith Empire and sparking uprisings against the First Order across the galaxy.
How long did the Empire last after Palpatine died?
The Galactic Civil War lasted until 19 ABY, but the Empire lasted for a long while after that in the form of the Imperial Remnant, led by Admiral Gilad Pellaeon. In Canon, however, the Empire lasted from 19 BBY — 5 ABY, a mere 24 years compared to the several decades of the Legends version.
As it transpires the Empire repeatedly lost those battles and the opportunities they presented through a mix of confused strategies, a lack of understanding regarding their opponents, but predominantly an inability to deploy their overwhelming forces when the situation called for it.
Why Palpatine Believed Destroying Alderaan Destroyed the EMPIRE - Star Wars Explained
Who led the Empire after Palpatine?
After the final death of Palpatine in 11 ABY, Xandel Carivus proclaimed himself the Emperor, but was soon killed by Kir Kanos. Under the Imperial Remnant, the role of Imperial Head of State was assumed by Supreme Commander of the Imperial Fleet.
According to Imperial Estimates in Star Wars Inside #87, only about 100 of the Jedi survived Order 66. Most were subsequently hunted down and killed in the years following the Great Jedi Purge.
As the Death Star had been destroyed, and the Battle of Yavin had finally taken place, the years then moved into ABY (After the Battle of Yavin). It's said that Star Wars: Return of the Jedi takes place during 4 ABY, meaning Palpatine was 88 when he met his original end.
With enough bodies, Palpatine could live forever, but finding those bodies proved to be the most challenging part of his plan. While essence transfer would allow Palpatine to live forever, it also came with a caveat.
Although it's not fully clear where the Darth moniker originated, Darth Andeddu is thought to be the first character to use the title in-universe. Having originated in Legends, Andeddu was mentioned in the new canon in the comic Star Wars Adventures: Return to Vader's Castle 2, which referenced "Andeddu's flames".
By 44 ABY, the true Sith species in the Empire were believed to have gone extinct due to the interbreeding process. Characteristics shown would be determined depending on how much Dark Jedi or Sith blood an individual possessed due to interbreeding.
Emperor Vitiate was a Sith Lord who successfully gained near immortality by draining the life force of an entire planet, later attempting to drain all life in the galaxy, which would give him true immortality.
After the death of Count Dooku above Coruscant, the death of General Grievous on Utapau and finally the massacre of the leaders of the Confederacy of Independent Systems on Mustafar, Chancellor Palpatine (by then ruling with near-absolute power) began a purge of the Jedi Order, and then proclaimed himself Emperor of ...
Darth Sidious, born Sheev Palpatine and also simply known as The Emperor, was a male human Dark Lord of the Sith and Emperor of the Galactic Empire, with his reign lasting from 19 BBY to 4 ABY.
The Empire needed enemies; Palpatine's rise was predicated on eliminating the Separatist threat and the creation of the Empire was galvanized as a bulwark against the "real" internal threat posed by the Jedi.
Although his body was destroyed when Vader threw him down into the second Death Star's reactor, Palpatine survived by transferring his spirit into a clone on Exegol. This was achieved through dark science that only the Sith knew of, but the process was far from perfect.
Palpatine, motivated by pride and a desire to see his homeworld become a part of the greater galaxy, sought to quietly undermine his father's political agenda during the 65 BBY election season. More importantly, however, it was the rift with his father that indirectly led to his future as a Sith.
Through more recent lore, it's known that Palpatine was obsessed with preserving his own life, as he had managed to stay alive up to Star Wars: The Rise of Skywalker. But outside that, he's never shown any ability to prevent the death of another.
Legend had it that Yoda—a Jedi who became Grand Master—was trained by N'Kata Del Gormo. A Force-sensitive Hysalrian, N'Kata Del Gormo was trained in the ways of the Force and achieved the rank of Master within the Jedi Order.
He understood he lost the ethereal battle before their physical fight even began. Thus, Palpatine never viewed Yoda as a major concern, even though the Jedi Master fought him to a de facto draw during the events of Revenge of the Sith.
Rumor had it that his mother was Palpatine's Umbaran aide Sly Moore, who had impregnated herself using DNA from an undisclosed source. Regardless of the veracity of that report, Triclops was regarded as the true son of Palpatine, both by himself and the few high-ranking officials who were aware of his existence.
Order 66 marked the downfall of the Jedi, orchestrated by Palpatine to cut them off from the light side of the Force. Survivors like Yoda, Ahsoka, Obi-Wan lived on, facing the Empire's wrath as they struggled to continue their fight.
Order 99 was an order arranged by Jedi Master CaptainR1. It turned the storm troopers back to side of the new Republic. During the clone wars, clone commando "Roger" refused Order 66. He was very close to the Jedi he was fighting with.
