Khaeli - first Mask Maker
Khaeli was born in a family of blacksmiths, but she's the first one to have ever used Elemental Crystals - which have been discovered by her husband Ohliko, an explorer and adventurer from the Jungle village - in her weapons and masks, thus creating the first Masks of Power ever.
She was the first and the only one who managed to successfully merge several Elemental Powers into a single mask. She also created the Masks of Creation and Control, which have been passed down through the generations since then.
Most of her masks were in the capital city of Okoto when Ekimu and Makuta fought and have been destroyed.
However, it is said that some of them have been kept in a secret room under her forge, which would later become the Temple of Creation.