The House of the Stewards was called the House of Húrin, for they were descendants of the Steward of King Minardil (1621–34), Húrin of Emyn Arnen, a man of high Númenórean race. After his day the kings had always chosen their stewards from among his descendants; and after the days of Pelendur the Stewardship became hereditary as a kingship, from father to son or nearest kin.
Each new Steward indeed took office with the oath ‘to hold rod and rule in the name of the king, until he shall return’. But these soon became words of ritual little heeded, for the Stewards exercised all the power of the kings. Yet many in Gondor still believed that a king would indeed return in some time to come; and some remembered the ancient line of the North, which it was rumoured still lived on in the shadows. But against such thoughts the Ruling Stewards hardened their hearts.
Nonetheless the Stewards never sat on the ancient throne; and they wore no crown, and held no sceptre. They bore a white rod only as the token of their office; and their banner was white without charge; but the royal banner had been sable, upon which was displayed a white tree in blossom beneath seven stars.
After Mardil Voronwë, who was reckoned the first of the line, there followed twenty-four Ruling Stewards of Gondor, until the time of Denethor II, the twenty-sixth and last. At first they had quiet, for those were the days of the Watchful Peace, during which Sauron withdrew before the power of the White Council and the Ringwraiths remained hidden in Morgul Vale. But from the time of Denethor I, there was never full peace again, and even when Gondor had no great or open war its borders were under constant threat.
In the last years of Denethor I the race of uruks, black orcs of great strength, first appeared out of Mordor, and in 2475 they swept across Ithilien and took Osgiliath. Boromir son of Denethor (after whom Boromir of the Nine Walkers was later named) defeated them and regained Ithilien; but Osgiliath was finally ruined, and its great stone-bridge was broken. No people dwelt there afterwards. Boromir was a great captain, and even the Witch-king feared him. He was noble and fair of face, a man strong in body and in will, but he received a Morgul-wound in that war which shortened his days, and he became shrunken with pain and died twelve years after his father.
After him began the long rule of Cirion. He was watchful and wary, but the reach of Gondor had grown short, and he could do little more than defend his borders, while his enemies (or the power that moved them) prepared strokes against him that he could not hinder. The Corsairs harried his coasts, but it was in the north that his chief peril lay. In the wide lands of Rhovanion, between Mirkwood and the River Running, a fierce people now dwelt, wholly under the shadow of Dol Guldur. Often they made raids through the forest, until the vale of Anduin south of the Gladden was largely deserted. These Balchoth were constantly increased by others of like kind that came in from the east, whereas the people of Calenardhon had dwindled. Cirion was hard put to it to hold the line of the Anduin.