Conrad stops at Constantinople to consolidate his…

A second army of invasion, sent by Suryavarman against Champa in 1148, also meets destruction at the hands of Jaya Harivarman’s forces, this time at Kayev in the Virapura plain.

Sayf al-Din Suri, on ascending the Ghurid throne in 1146, had divided the Ghurid kingdom among his brothers; Fakhr al-Din Masud received land near the Hari River; Baha al-Din Sam I received Ghur; Shihab al-Din Muhammad Kharnak received Madin; Shuja al-Din Ali received Jarmas; Ala al-Din Husayn received Wajiristan; and Qutb al-Din Muhammad received Warshad Warsh, where he builds the famous city of Firuzkuh.

However, Sayf later quarrels with his brother Qutb, who takes refuge in Ghazna, and is poisoned by the Ghaznavid sultan Bahram-Shah.

In order to avenge his brother, Sayf marches towards Ghazna in 1148, and scores a victory at the Battle of Ghazni while Bahram flees to Kurram.

The forces of Ghur, a hill state previously subordinate to the Ghaznavids, in 1148 under the Shansabanis dynasty rise up against their former overlords.

The situation for the Spanish Jews has deteriorated quickly under the the religiously intolerant Almohads, who present the Jewish community here with the grim alternative of submitting to Islam or leaving the city.

Bernard produces for Eugenius, who helps Bernard in his eloquent promotion of the disastrous Second Crusade, a treatise in 1148 on papal power in Christian society.

Count Ramon, turning against the Almoravid taifas of Valencia, …

…captures Tortosa and …

…Murcia.

A powerful Sicilian fleet had been built up under several admirals, or "emirs", of whom the greatest is George of Antioch, formerly in the service of the Muslim prince of Mahdia.

Mainly thanks to him, a series of conquests have been made on the African coast from 1135.

Taking advantage of internal strife and of a famine episode, George had captured Tripoli in 1146 and Cape Bona in 1148.

The Zirids, forced to abandon al-Qayrawan, hadve retreated to Mahdiyah, but their shattered state is not long able to survive the coastal attacks by Sicilian Normans and finally falls to them in 1148.

Sicilian Normans, after defeating the Zirids in 1148, occupy the independent city-state of Sfax, founded in 849 on the ruins of Taparura and Thaena.

(These North African conquests will be lost in the reign of Roger's successor William and will never form an integral part of the kingdom.)