In 1500, Froben, then forty years of age, married Gertrude, the daughter of a prosperous bookseller named Lachner. The latter supplied means for the extension of the printing-office in which, in 1504, seven presses were at work. During the thirty-six years of the business career of Froben, he printed no less than two hundred and fifty-seven separate works, many of these being of distinctive importance and of considerable compass. Among these were the complete works of S. Jerome, which appeared in 1516 in nine folio volumes; the works of S. Augustine, completed in 1529, in ten folio volumes; the New Testament in Greek (this was the first edition of the Greek text, and it was, later, utilised by Luther in the preparation of his German version); and the writings of Erasmus, who appears to be the only contemporary author whose books were undertaken by Froben. These proved to be good property for both the author and publishers, as Erasmus was addressing himself to the scholarly readers of the civilised world, and his writings were eagerly read throughout Europe by both the clergy and the laity. In addition to the authorised editions issued in Basel, Venice, and Paris, there were many piracy reprints, but notwithstanding the competition of these, the author was able to secure from his three publishers, Froben, Aldus, and Badius of Paris, returns that made a material addition to his income. He was probably the first author in Europe, writing after the invention of printing, who made any money by his pen. Froben secured the coöperation, in the course of his publishing work, of a number of learned associates who rendered assistance as literary advisers, editors, and press-correctors, the list including, among other scholars, Erasmus (who was for many years an inmate of his house), Oecolampadius, Heiland, Musculus, and Gelenius. To Froben also is to be credited the discovery of Hans Holbein. Holbein was born in Grünstadt in 1497, and came to Basel about 1517, with the view of making his living as a wood-engraver. Froben was one of the first to give him employment, and many of the designs in the Froben books issued between 1518 and 1522 were both drawn and engraved by young Holbein. It was through Froben that the talent of the young artist was brought to the attention of Erasmus, and Erasmus was the means of securing an invitation from Sir Thomas More for Holbein to visit England, where he spent the rest of his life and where his most important art-work was done. King Henry VIII. attached him to the Court and bestowed on him a pension.