I want to know the answer to the following question:
Who did Güshi Khan grant the governing authority to?
All the background I'm provided with is that "In a second ceremony held within the main hall of the Shigatse fortress, Güshi Khan enthroned the Dalai Lama as the ruler of Tibet, but conferred the actual governing authority to the regent Sonam Chöpel.". Is that enough to answer the question?