Otto Hightower was a knight from House Hightower of Oldtown who served as Hand of the King to three kings, although two of the kings removed him from office at various times. He was the younger brother of Lord Hightower, and the uncle of Lord Ormund Hightower. His children included Alicent Hightower, the second queen of King Viserys I Targaryen, and Ser Gwayne Hightower, second in command of the gold cloaks.
After Rhaenyra and the blacks took King's Landing in 130 AC, Otto was the first to...