Niccolo I D' Este 
Niccolo I D' was born about 1310. Niccolo I D''s father was Aldobrandino II D' Este and his mother is Alda Rangoni. His paternal grandparents were Obizzo II D' Este and Jacopina Fieschi. He had a brother named Obizzo III D'. He was the younger of the two children. He died on May 1st, 1344.General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, F.L. 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>, H.R. Moser <Burke Peerage>, L. Orlandini, O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842>, L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron <Brian Tompsett>, R. Dewkinandan) http://geneastar.org.
‌Niccolo I D' and Beatrice were married in a religious ceremony on January 21st, 1336. They had a daughter named Giacoma D'.
