Who disciples founded yellow hats?

The Yellow Hats, or Gelug school of Tibetan Buddhism, was founded by Je Tsongkhapa in the early 15th century. Tsongkhapa was a prominent scholar and reformer who emphasized monastic discipline, philosophical study, and meditation. His teachings and practices laid the foundation for the Gelug tradition, which later became the dominant school of Tibetan Buddhism. The Yellow Hats are known for their distinctive yellow hats, symbolizing their teachings and practices.