Lorenz Lechler (1460–1538)
Born 1460 CE, died 1538 CE.
Lorenz Lechler was a late 15th-century German master mason who composed Instructions, a booklet on gothic design, and who contributed to the Heidelberg Church. As a master mason, Lechler's writing gives insight into Gothic architecture from the perspective of a builder as opposed to the more common contemporary perspectives written by clerics.
Text from the Wikipedia article Lorenz_Lechler, licensed CC BY-SA 4.0.