If you include The Clone Wars as EU, it draws a lot from that. There's also a little bit from some of the novels. https://www.thewrap.com/the-mandalorian-ahsok

If you include The Clone Wars as EU, it draws a lot from that. There's also a little bit from some of the novels. https://www.thewrap.com/the-mandalorian-ahsoka-tano-star-wars-extended-universe-guide/ https://www.thewrap.com/the-mandalorian-ahsoka-tano-star-war...