Gerhard I. von Holstein-Itzehoe1229–
- Name
- Gerhard I. von Holstein-Itzehoe
| Birth | estimated as equal to wife's birth year about 1229 |
| Birth of a son #1 | Gerhard II. der Blinde von Holstein-Plön 1254 (Age 25 years) |
| Marriage of a child | Gerhard II. der Blinde von Holstein-Plön — Ingeborg avf Sverige — View this family December 12, 1275 (Age 46 years) |
| Marriage of a child | Gerhard II. der Blinde von Holstein-Plön — Agnes von Brandenburg — View this family 1293 (Age 64 years) |
| Death of a son | Gerhard II. der Blinde von Holstein-Plön 1312 (Age 83 years) |
| Family with Elisabeth von Mecklenburg |
| himself |
Gerhard I. von Holstein-Itzehoe Birth: estimated as equal to wife's birth year — about 1229 |
| wife |
Elisabeth von Mecklenburg Birth: estimated a gap of 25 years — about 1229 |
| son |
Gerhard II. der Blinde von Holstein-Plön Birth: 1254 25 25 Death: 1312 |