Dior was the ninth Ruling Steward of Gondor.
Following the death of his father, Barahir, in TA 2412 Dior became the ninth Ruling Steward of Gondor, and the ninth steward to rule during the era known as the Watchful Peace. Dior ruled Gondor until his death in TA 2435 at the age of 107 years old after a rule of twenty-three years. Dior had no son and thus no direct heir so at the time of his death, the line of succession passed from Dior to his nephew Denethor I, the son of his sister Rían.
House of Húrin
|Ruling Steward of Gondor|
|Dior of Gondor||Succeeded by|
|TA 2412 - TA 2435|
- The History of Middle-earth, Vol. 12: The Peoples of Middle-earth, VII: "The Heirs of Elendil"
- The Lord of the Rings, Appendix A: Annals of the Kings and Rulers, I: The Númenórean Kings, (iv): "Gondor and the Heirs of Anárion"
- The History of Middle-earth, Vol. 5: The Lost Road and Other Writings, Part Three: "The Etymologies"