Alexios Mosele or Musele/Mousele (Greek: Μουσηλέ), was a Byzantine

Byzantine

Byzantine usually refers to the Roman Empire during the Middle Ages.Byzantine may also refer to:* A citizen of the Byzantine Empire, or native Greek during the Middle Ages...

 admiral (droungarios tou ploimou) in the early reign of Emperor Romanos I Lekapenos (r. 920–944). He was killed in 922, leading a detachment of imperial marines along with the imperial tagmata

Tagma (military)

The tagma is a term for a military unit of battalion or regiment size. The best-known and most technical use of the term however refers to the elite regiments formed by Byzantine emperor Constantine V and comprising the central army of the Byzantine Empire in the 8th–11th centuries.-History and...

under the domestikos ton scholon, Pothos Argyros

Pothos Argyros (10th century)

Pothos Argyros was a Byzantine general active in the first half of the 10th century.He was the son of the magistros Eustathios Argyros, Drungary of the Watch under Leo VI the Wise . Pothos and his brother served under Leo VI as manglabites. Ca. 921 he was appointed to the post of Domestic of the...

, against the forces of the Bulgarian

First Bulgarian Empire

The First Bulgarian Empire was a medieval Bulgarian state founded in the north-eastern Balkans in c. 680 by the Bulgars, uniting with seven South Slavic tribes...

 tsar, Simeon I

Simeon I of Bulgaria

Simeon I the Great ruled over Bulgaria from 893 to 927, during the First Bulgarian Empire. Simeon's successful campaigns against the Byzantines, Magyars and Serbs led Bulgaria to its greatest territorial expansion ever, making it the most powerful state in contemporary Eastern Europe...

 (r. 893–927). The Byzantines were defeated at the Battle of Pegae, and Mosele drowned while trying to escape.

Sources