House Greyjoy of Pyke is one of the Great Houses of Westeros. The following is a Greyjoy family tree from Game of Thrones. As we see, Balon, Euron, and Aeron Greyjoy's parents are not revealed here. Balon married Alannys Harlaw and gave birth to Rodrik Greyjoy, Maron Greyjoy, Yara Greyjoy, and Theon Greyjoy. At the same time, some of the other prominent Greyjoy members that are worth mentioning here are King Euron III Greyjoy, Victarion Greyjoy (sixth son of Lord Quellon), Quenton Greyjoy (a distant cousin to the main branch), Dagon Greyjoy (more distant cousin to the main branch), and more.