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|Location||Arnor and Gondor|
Minas Tirith (Gondor)
Bree, Bywater, Fornost Erain, Hobbiton, Michel Delving, Tuckborough
Calembel, Dol Amroth, Erech, Linhir, Pelargir, Umbar
Arthedain, Cardolan, Rhudaur
Anfalas, Anórien, Belfalas, Dorwinion, Enedwaith (shared with Arnor), Ithilien, Lamedon, Lebennin, Lossarnach, South Gondor
|Population||Primarily Men (many Hobbits in the Shire and Bree-land)|
|Language||Westron, Númenórean Sindarin, Quenya, Hobbitish|
Council of Gondor
|Preceded by||Arnor, Gondor|
|Established||1 May, T.A. 3019|
- "Thus peace came again, and a new Spring opened on earth; and the Heir of Isildur was crowned King of Gondor and Arnor, and the might of the Dúnedain was lifted up and their glory renewed."
- ― The Silmarillion, "Of the Rings of Power and the Third Age"
The Reunited Kingdom was the restored kingdom of Arnor and Gondor, the twin kingdoms founded at the end of the Second Age by Elendil and his sons Isildur and Anárion. In the beginning, Elendil was High King of both realms, but the two were divided after the deaths of his sons. Over 3,000 years later Aragorn Elessar reunited the kingdoms and ruled as High King of the newly-founded Reunited Kingdom.
During Aragorn's reign, the Reunited Kingdom was comprised of the old realms of Arnor and Gondor, excluding only Rohan (the grant of which he renewed); and the Shire, the Drúadan Forest, and the Treegarth of Orthanc (which became protectorates).
- North to the Field of Celebrant and the southern eaves of Mirkwood
- West to the Greyflood
- East to the inland Sea of Rhûn
- South to the River Harnen, and also along the coast to the peninsula and haven of Umbar
In all debatable matters of importance domestic, or external, however, even Denethor had a Council, and at least listened to what the Lords of the Fiefs and the Captains of the Forces had to say. Aragorn re-established the Great Council of Gondor, and in that Faramir, who remained by inheritance the Steward (or representative of the King during his absence abroad, or sickness, or between his death and the accession of his heir) was his chief counsellor.
After his accession, Aragorn established a council in Arnor, because in Fo.A. 13, he chose three Counsellors of the North-kingdom from the people of the Shire and Buckland. These Counsellors were those appointed to the positions of the Thain and Mayor of the Shire, and the Master of Buckland.
- Main article: Realms in Exile
At the end of the Second Age, Elendil and his sons established two great kingdoms in Middle-earth: Arnor in the north and Gondor in the south. These Kingdoms of the Dúnedain were united under a single High King, Elendil himself, who ruled the North-kingdom while his sons reigned jointly over the South-kingdom of Gondor.
In the first years of the Third Age, this union failed. After the loss of Isildur at the Disaster of the Gladden Fields, his nephew Meneldil took up the kingship of Gondor, and that country remained independent from the North-kingdom through most of the Third Age.
In the north, the realm of Arnor fell into troubled times. It broke into three separate kingdoms, and in time these too were lost, so that the Dúnedain of the North-kingdom of Elendil were reduced to a wandering people led by a Chieftain. Nonetheless, they were able to maintain Isildur's line in unbroken descent.
There were two attempts to reunite the kingdoms, but only the second of these was successful. The first of these occurred in T.A. 1944 when Arvedui, King of Arthedain, claimed the High Kingship of the Two Kingdoms. His claim was rejected by Steward Pelendur and the Council of Gondor, who elected to maintain their independence.
 Reign of Elessar
More than a thousand years later, after the War of the Ring, Arvedui's direct descendant, Aragorn, came forward to make the same claim. This time, the people of Gondor accepted a High King, and the Two Kingdoms were restored and reunited at last.
Aragorn restored Gondor and repeopled it, but retained Minas Tirith as the chief city. He rebuilt Annúminas and when he went north, would rule from there. He also had the ruins of Fornost Erain rebuilt and made it a great city where Men dwelt once again. The Shire was an exception to this, and though it lay within the Reunited Kingdom, Aragorn made a law that Men should not enter it, a law that he observed himself.
During his reign, he, alongside King Éomer, led military campaigns beyond the Sea of Rhûn and on the far fields of the South. The threat of the Corsairs was finally completely subdued during his reign. He also made peace with the Haradrim after his coronation.
 Later History
After Aragorn's death in Fo.A. 120, his son Eldarion took up the High Kingship. It is said that Eldarion's reign would have lasted for about 100 years after the death of Aragorn. Of Eldarion, it was foretold that he should rule a great realm, and that it should endure for a hundred generations of Men after him, that is until a new age brought in again new things; and from him should come the kings of many realms in long days after. But if this foretelling spoke truly, none now can say, for Gondor and Arnor are no more; and even the chronicles of the House of Elessar and all their deeds and glory are lost.
 Other versions of the legendarium
In an unfinished story set some 220 years after the fall of Sauron, the Reunited Kingdom encountered a renewal of Morgoth-worship known as the Dark Tree. However, J.R.R. Tolkien did not finish this story, because he "discovered that the King's Peace would contain no tales worth recounting".
- ↑ 1.0 1.1 1.2 J.R.R. Tolkien, The Lord of the Rings, Appendix A, "The House of Eorl", "The Kings of the Mark", Third Line
- ↑ 2.0 2.1 J.R.R. Tolkien, Christopher Tolkien (ed.), The Peoples of Middle-earth, "VII. The Heirs of Elendil"
- ↑ 3.0 3.1 3.2 3.3 J.R.R. Tolkien; Humphrey Carpenter, Christopher Tolkien (eds.), The Letters of J.R.R. Tolkien, Letter 244, (undated, written circa 1963)
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Peoples of Middle-earth, "II. The Appendix on Languages"
- ↑ 5.0 5.1 5.2 J.R.R. Tolkien, The Lord of the Rings, Appendix A, "The Númenorean Kings", "Eriador, Arnor, and the Heirs of Isildur"
- ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 J.R.R. Tolkien, The Lord of the Rings, Appendix A, "The Númenorean Kings", "Gondor and the Heirs of Anárion"
- ↑ 7.0 7.1 J.R.R. Tolkien, The Lord of the Rings, Appendix B, "Later Events Concerning the Members of the Fellowship of the Ring"
- ↑ 8.0 8.1 8.2 8.3 J.R.R. Tolkien, Christopher Tolkien (ed.), The Silmarillion, "Of the Rings of Power and the Third Age"
- ↑ J.R.R. Tolkien, The Lord of the Rings, The Return of the King, "Homeward Bound"
- ↑ J.R.R. Tolkien, The Lord of the Rings, The Return of the King, "The Steward and the King"
- ↑ 11.0 11.1 J.R.R. Tolkien, The Lord of the Rings, Appendix A, "The Númenorean Kings", "The Tale of Aragorn and Arwen"
- ↑ 12.0 12.1 J.R.R. Tolkien; Humphrey Carpenter, Christopher Tolkien (eds.), The Letters of J.R.R. Tolkien, Letter 338, (dated 6 June 1972)
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Peoples of Middle-earth, "VIII. The Tale of Years of the Third Age", text of manuscript T4 events after the end of the Third Age in the year 3021
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Peoples of Middle-earth, "XVI. The New Shadow"