Keyholders are officials of the Iron Bank of Braavos.
Keyholders are descendants of the twenty-three founders of the Iron Bank: sixteen men and seven women, each of whom possessed keys to the bank's great subterranean vaults. Their descendants now exceed one thousand, and they proudly display ceremonial keys on formal occasions. Those who have lost their wealth still keep their keys and associated honors.
Besides the keyholders, other wealthy and powerful Braavosi own shares in the bank, sit on its secret councils, and have a voice in selecting the men who lead the bank. Keyholders and magisters participate in the election of new Sealords.
During the reign of King Daeron II Targaryen, Ser Michael Manwoody was sent by the king on several missions to the keyholders of the Iron Bank. There is record of their correspondence between them regarding these negotiations.
A Feast for Crows
The Winds of Winter
This information has thus far been released in a sample chapter for The Winds of Winter, and might therefore not be in finalized form. Keep in mind that the content as described below is still subject to change.