Ishtar

"When the world began, Tammuz came together with Ishtar in the world. She bore him, she made love with him and she remained a virgin. When Tammuz died in the summer and all vegetation died with him, Ishtar was looking for him all over the world. She finally found him in the underworld and brought him back to life. Tammuz was reborn and the vegetation could flourish again."

from: [link]