First of all, Ahsoka and Rex's fates have not been revealed yet. So we do not know what happens to them yet. And since you said Naboo, you might be referring to the episode with that blue virus. No. Ahsoka and Rex were given an antidote that saved them from the fatal virus. Another clone and Padme were also saved.
Asoka Mehta died in 1984.
Asoka Karunaratne died on 1988-02-24.
Tigernach of Clones died in 549.
It is not known how, when, or where the Asoka died. A Tibetan tradition maintains that he died at Taxila.
Asoka Peiris died on December 24, 2007, in Moratuwa, Sri Lanka.
1254
No. But Rex's real fate hasn't been confirmed yet
She died ina space ship you retards, not Padme' but the Queen Amidala of Naboo.
Yes. El capitan shoots her
Asoka's death has not yet been confirmed, but they are working on it. Some say he died from natural causes, but others say it was from jealousy involving wives.
Rex's fate, as with Ahsoka Tano's, hasn't been confirmed as of yet.
Yes, she was killed by sand people.