|Born||In or before 28 AC|
|Died||In 43 AC or 44 AC, on the road to Honeyholt|
Morgan Hightower was a knight from House Hightower and the commander of the Warrior's Sons chapter at Oldtown during the Faith Militant uprising. He was a son of Lord Manfred Hightower, and the younger brother of Lord Martyn Hightower and Queen Ceryse Hightower.[N 1]
When King Maegor I Targaryen and his army approached Oldtown during the uprising of the Faith Militant, Ser Morgan's elder brother, Lord Martyn Hightower, called the banners. Morgan led the Warrior's Sons of Oldtown in surrounding the Starry Sept to protect the High Septon. By morning, however, the High Septon was dead.
Morgan and his sworn brothers were arrested under orders of Lord Martyn and put on trial by Maegor the Cruel. Morgan was the only one pardoned, while the rest were given the choice between death or taking the black. Morgan's pardon led to the suspicion that he had murdered the High Septon at the behest of his lordly brother, as the knight was seen entering and leaving the privy chambers of His High Holiness that night. Patrice Hightower, Visenya Targaryen, and the archmaesters of the Citadel have also been suspected of killing the High Septon.
- In The World of Ice & Fire, it is stated that "The unexpected nature of the High Septon's death in 44 AC aroused much suspicion, however, and whispers of murder persist to this day. Some believe His High Holiness was removed by his own brother, Ser Morgan Hightower, commander of the Warrior's Sons in Oldtown (and it is undeniably true that Ser Morgan was the sole Warrior's Son pardoned by King Maegor)." (The World of Ice and Fire, The Reach: Oldtown) However, it has been confirmed that Morgan Hightower was not the High Septon's brother, but Lord Martyn's, and that the printed statement was in error.