Alexander I Aldea (1397 – December 1436) was a Voivode of Wallachia (1431–1436) from the House of Basarab, son of Mircea the Elder.
He came to rule Wallachia during an extremely turbulent time when rule of the country changed hands by violence eighteen times during the 15th century.
He was strong enough to hold the throne for what was then a considerable time, a stretch of five years.
Upon his death, his half-brother Vlad II Dracul assumed the throne and would hold it off and on until he was killed in 1447.
You can help Wikipedia by expanding it.This biography of a member of a European royal house is a stub.