From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Palace (パレス, Paresu; FUNimation "Valese") is Son Goten's girlfriend.
Dragon Ball GT
Palace first appeared during the Baby Saga on a date with Goten. As she ate ice cream, she said that none of her previous boyfriends had taken her out on a date. Even though she was naive and a bit spacey at times, she was a good person and had true feelings for Goten. Mister Satan arrived on the scene and quickly made a fool of himself. She watched Goten as he flew off (after he had been taken over by Baby) and called him "mysterious".
Super 17 Saga
Palace appeared during the Super 17 Saga on a date with Goten. As she ate hamburger, she once again said that none of her previous boyfriends had taken her out on a date. Humorously, she thought she was supposed to eat the hamburger with a spoon.