Sigismondo D' Este 
Sigismondo D' was born on August 31st, 1433. Sigismondo D''s father was Niccolo III D' Este and his mother was Ricciarda Di Saluzzo. His paternal grandfather was Alberto I D' Este and his paternal grandmother is Isotta Albaresani; his maternal grandparents were Tommaso III Di Saluzzo and Marguerite De Pierrepont. He had a brother named Ercole I D'. He was the younger of the two children. He had eight half-brothers and seven half-sisters, named Meliaduse D', Alerto Carlo D', Ugo D', Leonello D', Borso D', Alberto D', Gurone D', Rinaldo D', Ginevra D', Lucia D', Margherita D', Isotta D', Beatrice D', Bianca D' and Margherita D'. He died at the age of 73 on April 1st, 1507.General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, H.R. Moser <Burke Peerage>), L. Orlandini, O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, and E. Lodge>) 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.1247 d.13 Feb 1293 in Ferrara, Italy
- b.~ 1274 d.1326
- b.~ 1250 d.1287
- b.14 Jul 1294 d.20 Mar 1353
- b.~ 1275
- b.1347 d.30 Jul 1393 in Ferrara, Italy
- b.~ 1310 d.27 Nov 1347
- b.09 Nov 1383 in Ferrara d.26 Dec 1441 in Milano, Italy
- b.~ 1350
- b.31 Aug 1433 d.01 Apr 1507
- b.~ 1280 d.1336
- b.1304 d.1357
- b.~ 1285
- b.1332 d.1396
- b.21 Jan 1277 d.06 Aug 1328 in Pescia, Italy
- b.~ 1308 d.> 1366
- b.~ 1280 d.1334
- b.~ 1356 d.>05 Oct 1416
- b.~ 1340
- b.~ 1410 d.16 Aug 1474 in Ferrara
- b.~ 1380 d.1419
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He had a biological son named Ercole D'.