In 1606, Elsheimer married Carola Antonia Stuarda da Francoforte (i.e. Stuart of Frankfurt- she was of Scottish ancestry and a fellow Frankfurter), and in 1609 they had a son. The son was not mentioned in a census a year later, possibly (Klessman says optimistically) because he had been put out to a wet-nurse. She was the recent widow of the artist Nicolas de Breul (born in Verdun) and after Elsheimer's death remarried an Italian artist, Ascanio Quercia, within a year of his death. Elsheimer converted to Catholicism by 1608 (possibly 1606). He was admitted to the Accademia di San Luca, the Roman painters' Guild, in 1606, giving them a self-portrait (his only portrait, and only painting on canvas) now in the Uffizi. In spite of his fame and talents, he appears to have both lived and died in difficult financial circumstances.