Around the time period of 4,000 years prior to the Battle of Yavin, the Jedi Master known as Thon resided on the barren planet called Ambria, within a compound. During a period, Oss Wilum, another Jedi, lived with him there, and Nomi Sunrider joined them later as she learned the Jedi path. The Ambria Jedi Enclave is what history would eventually call the compound.