Ivan Krstitelj Lalangue (= John the Baptist Lalangue), a native of Luxembrug born in 1743, found his new homeland in Croatia in the lovely city of Varazdin, where he was working as a physician until his death in 1799. He wrote an interesting book “Medicina ruralis iliti Vrachtva ladanyszka”, 374 p., a medicinal manual which represents an important monument of the Croatian (kajkavian) literature. It contains a botanical dictionary with a description of 160 medicinal herbs in Croatian, including their Latin and German names. It was printed in Varazdin in 1776. Lalangue is also the author of two other books printed in Varazdin.