Sigismondo III D' Este 
Sigismondo III D' was born in 1577. Sigismondo III D''s father was Filippo D' Este and his mother was Maria De Savoie. His paternal grandfather was Sigismondo II D' Este and his paternal grandmother is Giustina Trivulzio; his maternal grandfather was Emanuele Filiberto De Savoie and his maternal grandmother is Laura Crevola. He was an only child. He died at the age of 51 on July 25th, 1628.General Notes
SOURCES: LDS FHL Ancestal File # (familysearch.org)
"Ancestors/Descendants of Royal Lines" (Contributors: 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>, L. Orlandini, 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>), E. Wilkerson-Theaux <Laura Little>... http://geneastar.org.
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Ancestor Pedigree Chart
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*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)
- b.09 Nov 1383 in Ferrara d.26 Dec 1441 in Milano, Italy
- b.31 Aug 1433 d.01 Apr 1507
- b.~ 1410 d.16 Aug 1474 in Ferrara
- d.1517
- b.~ 1500 d.1579
- b.~ 1445
- b.1537 d.1592
- b.~ 1515
- b.1577 d.25 Jul 1628
- b.21 Feb 1403 d.29 Jan 1465 in Lyons, France
- b.05 Feb 1438 in Chambery, France d.07 Nov 1497 in Lemens
- b.~24 Sep 1419 d.11 Nov 1462 in Geneva, Switzerland
- b.1486 d.1553
- b.~ 1450 d.13 Oct 1513
- b.08 Jul 1528 d.30 Jun 1580
- b.17 Nov 1433 in Almeirim, Portugal d.18 Sep 1470 in Setubal, Portugal
- b.31 May 1469 d.13 Dec 1521 in Lisbon, Portugal
- b.13 Jun 1430 in Ourem, Portugal d.30 Sep 1506 in Beja, Portugal
- b.31 Dec 1504 in Lisbon, Portugal d.08 Jan 1538 in Nice, France
- b.10 Mar 1452 in Sos, Zaragoza, Spain d.23 Jan 1516 in Madrigalejo, Caceres, Spain
- b.29 Jun 1482 in Cordoba, Spain d.07 Mar 1518 in Lisbon, Portugal
- b.22 Apr 1451 in Madrigal De Las Altas, Torres, Avila, Spain d.26 Nov 1504 in Castillo De La Mota, Medina Del Campo, Valladolid, Spain
- b.1556 d.BET 30 AUG 1580 AND 1581
- b.~ 1535
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They had a son named Filippo Francesco D'.