Hasan Agha or Hadım Hassan Ağa, also Hassan the eunuch, was a Sardinian renegade and effective ruler of the

Regency of Algiers The Regency of Algiers ( ar, دولة الجزائر, translit=Dawlat al-Jaza'ir) was a state in North Africa lasting from 1516 to 1830, until it was conquered by the French. Situated between the regency of Tunis in the east, the Sultanate o ...

from 1533 to 1545. He was the deputy of

Hayreddin Barbarossa Hayreddin Barbarossa ( ar, خير الدين بربروس, Khayr al-Din Barbarus, original name: Khiḍr; tr, Barbaros Hayrettin Paşa), also known as Hızır Hayrettin Pasha, and simply Hızır Reis (c. 1466/1478 – 4 July 1546), was an O ...

, who left him in command when he had to leave for

Constantinople la, Constantinopolis ota, قسطنطينيه , alternate_name = Byzantion (earlier Greek name), Nova Roma ("New Rome"), Miklagard/Miklagarth (Old Norse), Tsargrad ( Slavic), Qustantiniya (Arabic), Basileuousa ("Queen of Cities"), Megalopolis (" ...

in 1533.''A history of the Maghrib in the Islamic period'' by Jamil M. Abun-Nasr p.151''ff''
/ref> In 1534 also, Hasan Agha continued to be left in command of Algiers when Barbarossa waged his campaigns in

Tunisia ) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , ...

."Leaving the government of Algiers to his khalifa, Hasan Agha, Barbarossa entered Tunisia, seized La Goulette (Aug. 16, 1534) and from there advanced on Tunis." i
''E.J. Brill's first encyclopaedia of Islam 1913-1936'' by M. Th. Houtsma p.872
/ref> Hasan Agha ruled Algiers until 1545, as Barbarossa continued to be based in Istanbul as Commander-in-Chief of the Ottoman fleet. Hasan Agha was the commander of Algiers during the 1541 Algiers expedition, in which Barbarossa was absent and which ended with catastrophic results for Charles V.''Handbook for travellers in Algeria and Tunis, Algiers, Oran, Constantine ...'' by John Murray (Firm),Sir Robert Lambert Playfair p.38
/ref> In 1542, he besieged the tribe of the Zaouaoua, who had supplied Charles V with 2,000 troops. Upon the retirement of Barbarossa in 1544, the son of Barbarossa Hasan Pasha was appointed Governor of Algiers to replace his father, and thus also replace Hasan Agha in the position of effective ruler.

Notes

{{Authority control 16th-century Algerian people Rulers of the Regency of Algiers Converts to Islam People from Sardinia Eunuchs from the Ottoman Empire 16th-century people from the Ottoman Empire 16th century in Algiers Algerian people of Italian descent