1490 - 1539 (48 years)| Name | Johann von Kleve | |
| Title | Duke of Cleves, Count of Mark | |
| Suffix | III | |
| Birth | 10 Nov 1490 | Nassau, Deggendorf, Bavaria, Germany  |
| Gender | Male | |
| Death | 6 Feb 1539 | Cleves, Kleve, North Rhine-Westphalia, Germany |
| Person ID | I13665 | A Tree Called Smith |
| Last Modified | 21 Jul 2025 | |
| Father | Johann 'Babymaker' von Kleve-Mark, II, b. 13 Apr 1458, Brussels (Bruxelles), Belgium d. 15 Mar 1521, Cleve, Gutersloh, North Rhine-Westphalia, Germany (Age 62 years) | |
| Relationship | natural | |
| Mother | Matilda von Hessen, b. Jul 1473, Nassau, Deggendorf, Bavaria, Germany d. 19 Feb 1505, Cologne, Cologne, North Rhine-Westphalia, Germany (Age 31 years) | |
| Relationship | natural | |
| Marriage | 3 Nov 1489 | Nassau, Deggendorf, Bavaria, Germany |
| Family ID | F538 | Group Sheet | Family Chart |
| Family | Duchess of Jülich-Berg Maria von Jullich, b. 3 Aug 1491, Jülich, Duren, North Rhine-Westphalia, Germany d. 19 Aug 1543, Büderich, Neuss, North Rhine-Westphalia, Germany (Age 52 years) | |||
| Marriage | 1 Oct 1510 | Rhineland-Palatinate, Germany |
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| Family ID | F4894 | Group Sheet | Family Chart | ||
| Last Modified | 21 Jul 2025 | |||
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| Old World | | _Johann III John III, Duke of Cleves and Count of Mark (10 Nov 1490 – 6 Feb 1539), known as John the Peaceful, was the Lord of Ravensberg, Count of Marck, and founder of the United Duchies of Jülich-Cleves-Berg. |
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