He married a portionless nun.
Returning home, he was disinherited by his father's will, for his marriage with Cornelia (Neeltje) Simons, a portionless gentlewoman.
She saw with sorrow, and sometimes with exasperation, symptoms of a growing attachment between her son and the portionless Sonya.
Kepler's second courtship forms the subject of a highly characteristic letter addressed by him to Baron Stralendorf, in which he reviews the qualifications of eleven candidates for his hand, and explains the reasons which decided his choice in favour of a portionless orphan girl named Susanna Reutlinger.