Otto was born about 1206, the son of unknown parents. The place is not known.
He died after 1255. The place is not known.
His wife was Adelheid von Ahaus. They were married, but the date and place have not been found. Their only known child was sir Bernhard I (?->1307).
| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Birth | ABT 1206 |
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| Death | AFT 1255 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | herr von Horstmar |