(b Warburg, 1553–4; d Warburg, 1603). German goldsmith, engraver and draughtsman. Probably from a long-established Warburg family of freemen, he is first fully named in 1578, in an engraving that shows his connections with scholars as an illustrator of academic works. One of these was Michele Mercati, for whom Eisenhoit worked during a stay in Rome c. 1580 on the Metallotheca Vaticana, a work cataloguing the Vatican’s scientific collections. His style draws principally on the Roman Late Renaissance. Back in Germany by c. 1582–5, Eisenhoit began to work primarily for patrons residing near Warburg, where he had settled by 1587 at the latest. Commissions of these years show work for the Hessian courts in Kassel and Marburg and the beginning of his cooperation with Jost Bürgi, instrument-maker and mathematician to the Landgrave of Hesse-Kassel. Between c. 1582 and 1594 Eisenhoit decorated Bürgi’s mechanical celestial globes with engravings and illustrated with etchings a treatise on engineering.