The Brauroneion was the sanctuary  of an ancient deity that the Arcadians believed was the daughter of who ?
Brauroneion The Brauroneion was the sanctuary of Artemis Brauronia on the Athenian Acropolis, located in the southwest corner of the Acropolis plateau, between the Chalkotheke and the Propylaia in Greece. It was originally dedicated during the reign of Peisistratos. Artemis Brauronia, protector of women in pregnancy and childbirth, had her main sanctuary at Brauron, a "demos" on the east coast of Attica.
Thalia (nymph) In Greek mythology, Thalia (Greek: Θάλεια "Tháleia" or Θάλια "Thália", "the Joyous, the Flourishing", from θάλλειν / thállein, "to flourish, to be green") is a nymph, the child of Hephaestus. She is also given as an anthropomorphic secondary deity of plant life and shoots, possibly as the culmination of the transmission of knowledge on volcanic ash's use as a fertiliser, characteristic of ancient viticulture in volcanic soils such as those of the island of Santorini.