Giannis A. Saregiannis (1898-1962) was born in Alexandria (Egypt) and studied in France. He returned to Egypt (1919-1920, 1929) and, as of 1930, he permanently settled in Greece. He knew Cavafy personally, admired the poet and wrote critical essays for his work. He was the founder of phytopathology in Greece, a discipline he taught at the Aristotle University of Thessaloniki and at the Agronomic School of Athens. He published scientific monographs.