Niccolo III D' Este 
Niccolo III D' was born on November 9th, 1383 in Ferrara. Niccolo III D''s father was Alberto I D' Este and his mother is Isotta Albaresani. His paternal grandparents were Obizzo III D' Este and Lippa Ariosto. He was an only child. He died at the age of 58 on December 26th, 1441 in Milano, Italy.General Notes
SOURCES: LDS FHL Ancestal File # (familysearch.org)
WEB:
"Ancestors/Descendants of Royal Lines" (Contributors: F. L. Jacquier (History of Charlemagne by Christian Settipani); L. Orlandini, Manuel Abranches de Soveral, Reynaud de Paysac, F.L. J P de Palmas (Aurejac et Tournemire; Frankish line; The Complete Peerage}, Jacquier (Genealogy of Lewis Carroll, Justin Swanstrom, The Royal Families of England Scotland & Wales by Burkes Peerage; Debrett's Peerage & Baronage; Table of descendants French Canadian Genealogical Society; Families of Monfort-sur-Risle & Bertrand de Bricquebec; The Dukes of Normandy, XXXXI), A. Brabant ("Dynastie Montmorency, Michel d'Herbigny), Paul Leportier, Claude Barret, H.R. Moser (Burke Peerage), O.Guionneau, L.B. de Rouge, E. Polti, N. Danican (Britain's Royal Families; Buthlaw, Succession of Strathclyde, the Armorial 1961-62) A.Terlinden (Genealogy of the existing British Peerage, 1842), L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron (Brian Tompsett), R. Dewkinandan, H. de la Villarmois, C. Donadello; Scevole de Livonniere, H. de la Villarmois, I. Flatmoen, P. Ract Madoux (History of Morhange; Leon Maujean; Annuaire de Lorraine, 1926; La Galissonniere: Elections d'Arques et Rouen), Jean de Villoutreys (ref: Georges Poull), E. Wilkerson-Theaux (Laura Little), O. Auffray, A. Brabant (Genealogy of Chauvigny of Blot from "Chanoine Prevost Archiviste du Diocese de Troyes Union Typographique Domois Cote-d'Or 1925), Emmanuel Arminjon (E Levi-Provencal Histoire de l'Espagne Andalouse), Y. Gazagnes-Gazanhe, R. Sekulovich and J.P. de Palmas ("notes pierfit et iconographie Insecula", Tournemire), H de Riberolles (Base Tournemire), Franck Veillon; ,(Histoire Généalogique de la Maison de Hornes, Bruxelles 1848; Notice Historique Sur L'Ancien Comté de Hornes, Gand 1850; Europäische Stammtafeln, Marburg 1978).
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Niccolo III D' and Giliola Da were married in a religious ceremony in 1397.
Niccolo III D' and Caterina were married in a religious ceremony about 1404. They had a son named Meliaduse D'.
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Children
Meliaduse D' Este
Meliaduse D' was born on March 3rd, 1407. He died at the age of 44 on January 2nd, 1452.
Niccolo III D' and Parisina were married in a religious ceremony in 1418. They had a son and two daughters, named Alerto Carlo D', Ginevra D' and Lucia D'.
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Children
Ginevra D' Este
Ginevra D' was born on March 24th, 1420. She died at the age of 20 on October 12th, 1440.
Niccolo III D' and Ricciarda Di were married in a religious ceremony in 1431. They had two sons named Ercole I D' and Sigismondo D'.
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Children
Ercole I D' Este
Ercole I D' was born on October 26th, 1431. He died at the age of 73 on January 25th, 1505.
Sigismondo D' Este
Sigismondo D' was born on August 31st, 1433. He died at the age of 73 on April 1st, 1507.
Niccolo III D' and Stella De' were married in a religious ceremony in Relationship. They had three sons and a daughter, named Ugo D', Leonello D', Borso D' and Margherita D'.
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Children
Ugo D' Este
Ugo D' was born on November 17th, 1405. He died due to execution for adultry with Niccolo's first wife Parisina Malatesta. at the age of 19 on May 21st, 1425 in Ferrara, Italy.
Leonello D' Este
Leonello D' was born on September 21st, 1407. He died at the age of 43 on October 1st, 1450 in Palazzo di Belriguardo.
Borso D' Este
Borso D' was born on August 24th, 1413. He died at the age of 57 on August 20th, 1471.
Niccolo III D' and Filippa Della were married in a religious ceremony in Relationship. They had two sons and two daughters, named Alberto D', Gurone D', Isotta D' and Beatrice D'.
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Children
Isotta D' Este
Isotta D' was born on April 27th, 1425. She died at the age of 30 on January 29th, 1456.
Niccolo III D' and Anna De' were married in a religious ceremony in Relationship. They had a son and a daughter, named Rinaldo D' and Bianca D'.
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Children
Bianca D' Este
Bianca D' was born on December 18th, 1440. She died at the age of 66 on January 11th, 1507.
They had a daughter named Margherita D'.