The name Babaeski is believed to have originated according to the following legend: the Ottoman Sultan, Mehmet the Conqueror, stopped in town on his way to Constantinople before the final siege of the city. He happened to meet an old man in front of the old mosque which is nowadays called Small Mosque (Küçük Cami) and asked him when the town was established. The man replied "Eskidir, eski," meaning "It is old, old." When the Sultan asked the man's age, he replied again, "Baba... eski," which means "The father is old." From then on, the name Babaeski has been used for the town.