Friedrich of Saxe-Altenburg was a member of the Ernestine branch of the House of Wettin and a Duke of Saxe-Altenburg and Duke of Jülich-Cleves-Berg. Friedrich is sometimes called "Friedrich the younger" to distinguish him from Prince Frederick of Saxe-Weimar, as they were both called "Friedrich of Saxe-Weimar".
- Occupation
- aristocrat, colonel, military officer
- Born
- February 12, 1599
- Died
- October 24, 1625, October 25, 1625
