He is married to Catharina.
They got married on November 10, 1664 at Wesuwe, Haren (Ems), Landkreis Emsland, Lower Saxony, Germany, he was 20 years old.Source 3
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Hermann Ahlers | |||||||||||||||||||||||||||||||||||
1664 | |||||||||||||||||||||||||||||||||||
Catharina | |||||||||||||||||||||||||||||||||||

Pauline Berens: Genealogienetwerk zus Greetje Berens voorheen EemslandBoekweitBoerenImmigratie
https://www.genealogieonline.nl/the-dutch-connection/I98.php
NR NAME voornaam GEBDAT TAUFDAT GEBORT Vater-Name Vater-Vorname Mutter-Name Mutter-Vorname JAAR
Alertz Hermannus 16440731 Deldorpe Alertz Gerhardi Catharina
Alers Hermanno 17040129
Alertz Herman 16641110 Wesuwe Catharina