Louis de Loczy (b. in Budapest, Hungary June 5, 1891; d. Rio de Janeiro, Brazil, June 9, 1980). He was the son of Lajos Lóczy, probably the most famous Hungarian geologist. Lajos de Loczy was the first western geologist to describe the structure, geomorphology and stratigraphy of mountain chains bordering the Tibetan Plateau that links the Kunlun Mountains with the north-south-oriented belt of mountains and gorges in central China.