TRENDEFRARAtlas of the Sultans · Wars, battles and treaties

Siege of Castelnuovo

Siege · 1539

Before the victory of Preveza (1538) Andrea Doria had taken Castelnuovo (Herceg Novi) on the Adriatic coast and placed Spanish troops there. According to the TDV article on Barbaros Hayreddin Pasha, after Preveza Barbaros retook Castelnuovo with ease (7 August 1539). Venice made peace with the Ottomans in 1540 and left the Holy League.

About the event

Date7 August 1539
LocationCastelnuovo (Herceg Novi), Bay of Kotor
ResultThe town was recovered from the Spanish
BelligerentsOttoman EmpireSpanish Empire
CommandersBarbaros Hayreddin Pasha

This event in the atlas

Took place during the reign of Suleiman I (1520–1566). Suleiman I

Open the reign of Suleiman I on the map

Context of the period

By the atlas's calculation the Ottoman lands covered about 3,449,000 km² in 1539; at the start of Suleiman I's reign they measured 3,034,000 km², at its end 5,127,000 km².

During Suleiman I (1520–1566) the atlas records 20 regions gained and 1 region lost.

Regions gained: Belgrade–Šabac (1521), Rhodes and the Dodecanese (1522), Eastern Slavonia and Syrmia (Osijek–Vukovar) (1526), Lika–Krbava (1527), Baghdad–Basra (1534), Požega (central Slavonia) (1537), Kars–Ardahan–Artvin (1537), Yemen–Asir (1538), and 12 more.

Regions lost: Kars–Ardahan–Artvin (1565).

Suleiman I in brief

With a reign of forty-six years he ruled longer than any other sultan. He brought the state to its military, legal and cultural peak; yet the executions of his sons Mustafa and Bayezid are the gravest instances of violence within the dynasty.

Other battles and treaties of Suleiman I

Areas are land area computed from the atlas's region data; see Method and sources.

Source: TDV Encyclopedia of Islam, “BARBAROS HAYREDDİN PAŞA” (Turkish); text written for the atlas.

Cite as: Atlas of the Sultans, “Siege of Castelnuovo (1539): Date, Commanders and Outcome”, https://padisahlaratlasi.com/en/events/siege-of-castelnuovo/ (last updated 12 November 2026). Corrections