author
Known for a concise 1867 study of Portugal’s great age of exploration, this little-known writer focused on why the voyages happened and what they changed. The work still turns up in digital libraries today, giving modern readers a window into 19th-century historical writing.

by A. F. Marx de Sori
A. F. Marx de Sori is the pen name used for António Filipe Marx de Sori, a Portuguese author associated with the 19th-century historical work Descobrimentos dos Portuguezes nos Seculos XV e XVI.
That book was published in Lisbon in 1867 and examines the causes, importance, and consequences of the Portuguese discoveries of the 15th and 16th centuries. Surviving catalog and ebook records suggest this is the work for which the author is chiefly remembered today.
Very little biographical information appears to be widely available online, so details about Marx de Sori’s life are hard to confirm. What can be said with confidence is that the author’s name remains attached to a compact, enduring account of Portugal’s maritime expansion, preserved through modern reprints and public-domain editions.