Alexandre Dumas, Pere (4 letters) was a French author and playwright best known for his historical novels of high adventure. His most famous works include The Three Musketeers and The Count of Monte Cristo (6 letters). Alexandre Eiffel (6 letters) was a French civil engineer and architect who designed the iconic Eiffel Tower in Paris. He also designed several bridges and buildings in France and other countries. Finally, Alexandre Cristo (6 letters) is a Brazilian author and journalist who has written several books on Brazilian culture and history.