Nielsen Hayden genealogy
Family: Bernabó Visconti / Montanina de Lazzari (F16603)
Stefano Visconti (1289-1327) 
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Valentina Doria (1290-1323)
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| Bernabó Visconti (1319-1385)
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Doninna (1360-1406)  |
Nielsen Hayden genealogy| Stefano Visconti (1289-1327)
|
| Valentina Doria (1290-1323)
|
| Bernabó Visconti (1319-1385)
|
| Doninna (1360-1406) |