The planet Mandalore has become a large focus in Star Wars, particularly in The Mandalorian – though much of its lore is still shrouded in mystery. While detailed information about the planet and its ancient history is still held close to the beskar chest plate by the Mandalorians themselves, information about their homeworld has been slowly presented to Star Wars viewers over the last several years. Star Wars movies and TV shows, comic books, and novels have all built on Mandalorian lore, including that of their homeworld and its extensive history.
https://screenrant.com/star-wars-unknown-facts-mandalore-planet/