Erich married Princess of Brunswick Sofie on 08 Apr 1373. Sofie (daughter of Duke of Brunswick-Wolfenbhuttel Magnus, II and Princess of Anhalt-Bernburg Katharine) was born about 1358 in Wolfenbhuttel, Braunschweig, Germany; died after 28 May 1416. [Group Sheet] [Family Chart]

1. Duke of Saxony Erich, V was born about 1374 in Ratzeburg, Schleswig-Holstein, Prussia; died before 1429.
2. Duke of Saxony Johann, IV was born about 1377 in Ratzeburg, Schleswig-Holstein, Prussia; died in Apr 1414.
3. Princess of Saxony-Lauenburg-Ratzeburg Katharine was born about 1380 in Ratzeburg, Schleswig-Holstein, Prussia; died after 18 Nov 1448.
4. Prince of Saxony Albrecht was born in Abt. 1384 in Ratzeburg, Schleswig-Holstein, Prussia; died on 20 Mar 1421.
5. Princess of Saxony Agnes Lauenburg was born about 1387 in Lauenburg, Scheleswig-Holstein, Prussia; died in Bef. 21 Dec 1415; was buried in Kloster Pudagla, Pommern, Prussia.
6. Prince of Saxony Magnus was born in Abt. 1390 in Ratzeburg, Schleswig-Holstein, Prussia; died on 21 Sep 1452.
7. Bernhard of Saxony Lauenburg Ratzeburg, II (IV) was born about 1392 in Ratzeburg, Schleswig-Holstein, Prussia; died on 16 Jul 1463.
8. Prince of Saxony Otto was born in Abt. 1394 in Ratzeburg, Schleswig-Holstein, Prussia; died in Bef. 1431.
9. Princess of Saxony Margarethe was born about 1397 in Ratzeburg, Schleswig-Holstein, Prussia; died before 1422.
10. Princess of Saxony Lauenburg Sofie was born about 1400 in Ratzeburg, Schleswig-Holstein, Prussia; died in 1462.