|Book(s)||Fire & Blood (mentioned)|
After the death of Ser Willis Fell and two of other members of the Kingsguard from the Winter Fever in 133 AC, King Aegon III Targaryen bestowed white cloaks on Ser Robert and Ser Robin Massey, making Ser Robin Lord Commander of the Kingsguard.
However, the king's regent, Lord Unwin Peake, with the support of Grand Maester Munkun, dismissed all the king's appointments on the grounds that no boy of twelve had the judgment to decide such weighty matters himself. Ser Marston Waters was then confirmed as Lord Commander of the Kingsguard. The king protested the dismissal of the Kingsguard knights, saying they served for life, but Lord Peake replied that was only when they had been properly appointed.