information:extraction, stylistic:tone, structural:scholar_edition
Education

No documents survive concerning Gutenberg's childhood or youth. The biographer Albert Kapr remarked that "most books on Gutenberg pass over this period with the remark that not a single fact is known". As the son of a patrician, education in reading and arithmetic would have been expected. A knowledge of Latin —a prerequisite for universities—is also probable, though it is unknown whether he attended a Mainz parish school, was educated in Eltville or had a private tutor. Gutenberg may have initially pursued a religious career, as was common with the youngest sons of patricians, since the proximity of many churches and monasteries made it a safe prospect. It has been speculated that he attended the St. Victor's south of Mainz (near Weisenau), as he would later join their brotherhood. It was the site of a well-regarded school and his family had connections there, though his actual attendance remains speculative.

He is assumed to have studied at the University of Erfurt, where there is a record of the enrollment of a student called Johannes de Altavilla in 1418—Altavilla is the Latin form of Eltville am Rhein.

Nothing is now known of Gutenberg's life for the next fifteen years, but in March 1434, a letter by him indicates that he was living in Strasbourg, where he had some relatives on his mother's side. He also appears to have been a goldsmith member enrolled in the Strasbourg militia. In 1437, there is evidence that he was instructing a wealthy tradesman on polishing gems, but where he had acquired this knowledge is unknown. In 1436/37 his name also comes up in court in connection with a broken promise of marriage to a woman from Strasbourg, Ennelin. Whether the marriage actually took place is not recorded. Following his father's death in 1419, he is mentioned in the inheritance proceedings.