Now that's for sure
. Meanwhile I've found this about Gampopa's:
One day Milarepa came and told him that he has to leave and go to the East direction to Tibet near the Nepal borders where you will encounter a mountain called Gampo Dharjere and looks like a King Mountain surrounded by 7 smaller ones that acts like minister to the King. The mountains itself is grown with all kinds of trees, grass and flowers very similar to a Mandala, this auspicious location will prosper in the near future. Milarepa prophesied that Gampopa should stay there and he will be able to benefit many sentient beings that will seek his teachings and instructions. Milarepa also presented Gampopa with a Hat that shapes like the Gampo mountain, this hat is also known nowadays as the Gampopa Hat normally seen worn by Vajra Masters during ceremony and rites.