Castamir the Usurper is a fictional character in J.R.R. Tolkien's universe of Middle-earth. J. R. R. Tolkien in 1916. ... A map of the Northwestern part of Middle-earth at the end of the Third Age, courtesy of the Encyclopedia of Arda. ...

The aptly named "Usurper", usurped the throne of Gondor from Eldacar, ruling from 1437 to 1447 of the Third Age, until he was violently deposed. One rendition of the flag of Gondor Gondor is a fictional country from J. R. R. Tolkiens Middle-earth. ... Eldacar (1255–1490) is a fictional character in J. R. R. Tolkiens universe of Middle-earth. ... The Third Age is a fictional time period from J. R. R. Tolkiens universe of Middle-earth. ...

The great-grandson of the unremarkable king Calmacil, Castamir was not in line for the throne, but his royal background had made him the Lord of Ships under the previous king, Valacar. His lineage and influence left him in a position to challenge the current king, Eldacar, who was only half Gondorian. As King Valacar's only son, Eldacar was the legitimate heir to the throne, but his half Rhovanion lineage angered citizens who believed that pure Númenórean blood must be maintained. Capitalizing on what became outright protest against the current king, Castamir was able to incite rebellion and besiege Eldacar within the city Osgiliath in 1437 of the Third Age. The city was set on fire by Castamir's troops, destroying the famed Dome of Stars. Shortly thereafter, Eldacar fled the city and into exile in Rhovanion, to the north. With the defeat of the king, Castamir seized the throne. Calmacil is a fictional character in J. R. R. Tolkiens universe of Middle-earth He was the eighteenth King of Gondor and the brother of Narmacil I whom he succeeded as King in 1294 T.A. His reign lasted for ten years in which his son Minalcar (known later as... Valacar (1194 T.A. - 1432 T.A.) is a fictional character in J. R. R. Tolkiens universe of Middle-earth. ... Valacar (1194 T.A. - 1432 T.A.) is a fictional character in J. R. R. Tolkiens universe of Middle-earth. ... In the fiction of J. R. R. Tolkien, Rhovanion or Wilderland was a large region of northern Middle-earth. ... Númenor is a fictional location from J. R. R. Tolkiens universe of Middle-earth and is intended to be his version of Atlantis. ... In the fiction of J. R. R. Tolkien, Osgiliath is a city of Middle-earth, the old capital city of Gondor. ... The Third Age is a fictional time period from J. R. R. Tolkiens universe of Middle-earth. ... In the fiction of J. R. R. Tolkien, the Dome of Stars refers to two great starred domes. ...

For ten years Castamir ruled Gondor with an iron fist, while Eldacar quietly regained power. Castamir ruled cruelly, and committed many foul deeds, including executing Eldacar's own son, Ornendil. At first the people of Gondor tolerated Castamir because of his pure Númenórean blood. Then, in 1447, after a decade under the wicked rule of the Usurper (as Castamir was now called), the people of Gondor rallied around the true king, Eldacar. Castamir was slain by Eldacar's forces at the Battle of the Crossings of Erui, the decisive battle of the Kin-strife, as this period came to be known. At the Crossings of Erui, Eldacar personally slew Castamir. In the fiction of J. R. R. Tolkien, the Battle of the Crossings Erui was the last battle of the Kin-strife of Gondor. ... In the fiction of J. R. R. Tolkien, the Kin-strife was a disastrous civil war in Gondor. ... The river Erui occurs in J. R. R. Tolkiens fictional universe of Middle-earth. ...

Castamir's influence did not end there. Remnants of his forces, and his surviving sons, retreated from the Battle of Erui to the port of Pelargir and escaped by ship to Umbar, far to the south. These descendants of Castamir became the so called "Corsairs of Umbar", fierce pirates who terrorized the ports of Gondor with the help of the men of Harad. They were perhaps the greatest threat to Gondor for nearly 400 years, commanding massive fleets of ships. Their most infamous exploit was the Raid of Pelargir in 1634, in which a Corsair armada sailed up the river Anduin to Pelargir, deep in Gondorian territory. This raid coincided with the young king Minardil's visit, and he was slain in by the Corsairs as they attacked. In J. R. R. Tolkiens fictional universe of Middle-earth, Pelargir was a great harbour city in southern Gondor. ... In J. R. R. Tolkiens fictional world of Arda, a great haven to the far south of Gondor in Middle-earth. ... The Corsairs of Umbar are a fictional nation of Men in the fantasy universe of J.R.R. Tolkiens Middle-earth. ... Harad is a town in Saudi Arabia. ... Location of Anduin in Middle Earth In J. R. R. Tolkiens fictional Middle-earth, Anduin is the Sindarin name for the Great River of Wilderland, the longest river in the Third Age (the original Sindarin name means Long River). ... In J. R. R. Tolkiens universe of Middle-earth Minardil is the twenty-fifth King of Gondor. ...

They remained a significant threat until 1810, when King Telumehtar retook Umbar for Gondor. In this battle the last descendants of Castamir were finally killed. So great a victory was this, that forever after Telumehtar was known as Umbardacil, which literally means "victor over Umbar". In J. R. R. Tolkiens universe of Middle-earth Telumehtar was the twenty-eighth King of Gondor. ... In J. R. R. Tolkiens universe of Middle-earth Telumehtar was the twenty-eighth King of Gondor. ...