Siege of Jailolo (1550)

Siege of Jailolo (1550–1551)
	; Map of Gilolo Island
Date	28 December 1550 – 19 March 1551
Location	Jailolo (town), Moluccas
Result	Portuguese victory
Belligerents
Portuguese Empire; Sultanate of Ternate	Sultanate of Jailolo
Commanders and leaders
Bernaldim de Sousa; Balthasar Velloso; Prince of Batjan	King of Jailolo; Prince of Jailolo
Strength
180 Portuguese soldiers; 5,000 allied men from Ternate and Batjan	1,200 soldiers; Large quantity of cannons
Casualties and losses
18 Portuguese killed	300 killed; Many wounded

The siege of Jailolo (1550–1551) was a successful military expedition launched by Bernaldim de Sousa, a Portuguese commander, against the Sultan of Gilolo, supported by the King of Ternate and the Prince of Batjan, lasting three months.^[1]^[2]

^ A History of Christianity in Indonesia. Netherlands: Brill. 2008. p. 55. ISBN 9789004170261. The unlikely Portuguese-Ternatean alliance brought Jailolo down in 1551 and its sultan was reduced to a vassal of Ternate.
^ Haire, J. (1981). The Character and Theological Struggle of the Church in Halmahera, Indonesia, 1941-1979. Germany: Lang. p. 101. ISBN 9783820458886. In 1551 the Ternatenese and Portuguese together subjugated Jailolo into becoming a vassal of Ternate.

[Brill2008-1] A History of Christianity in Indonesia. Netherlands: Brill. 2008. p. 55. ISBN 9789004170261. The unlikely Portuguese-Ternatean alliance brought Jailolo down in 1551 and its sultan was reduced to a vassal of Ternate.

[Haire1981-2] Haire, J. (1981). The Character and Theological Struggle of the Church in Halmahera, Indonesia, 1941-1979. Germany: Lang. p. 101. ISBN 9783820458886. In 1551 the Ternatenese and Portuguese together subjugated Jailolo into becoming a vassal of Ternate.

[1]

[2]