Sigismund I. von Anhalt-Dessau, Fürst von Anhalt-Dessau, was born circa 1366 to Johann I. von Anhalt-Zerbst (c1345-c1380) and Elisabeth von Henneberg-Schleusingen (1351-1397) and died circa 1405 Coswig, Germany of unspecified causes. He married Jutta von Querfurt-Naumburg (c1370-1410) 1386 JL .
In 1382, after the death of his father, Sigismund inherited the principality of Anhalt-Zerbst jointly with his brothers Albrecht IV. and Waldemar III.. After the death of Waldemar in 1391, Sigismund and Albrecht became the sole co-rulers.
Five years later, in 1396, both brothers decided to settle upon a formal division of the principality of Anhalt-Zerbst. Sigismund assumed the title "Lord of Zerbst," but established the town of Dessau as his main residence and capital of his newly-created principality of Anhalt-Dessau.
Children
| Name | Birth | Death | Joined with |
| Sofie von Anhalt-Dessau (c1386-c1419) | |||
| Elisabeth von Anhalt-Dessau (c1386-c1416) | 1386 | 19 November 1413 | Albrecht IV. von Mansfeld (c1376-1416) |
| Waldemar IV. von Anhalt-Dessau (c1389-c1423) | |||
| Georg I. von Anhalt-Dessau (c1390-1474) | 1390 | 21 September 1474 Dessau, Saxony-Anhalt, Germany | Matilde von Anhalt-Bernburg (c1389-bef1432) Eufemia von Öls (c1400-1444) Sofie (c1410-1451) Anne von Lindau-Ruppin (c1430-1513) |
| Mathilde von Anhalt-Dessau (c1390-c1463) | |||
| Siegmund II. von Anhalt-Dessau (c1395-c1450) | |||
| Albrecht VI. von Anhalt-Dessau (c1395-c1469) | |||
Footnotes (including sources)
| ‡ General |