Ibrahim Inal was a Seljuk

Seljuq dynasty

The Seljuq ; were a Turco-Persian Sunni Muslim dynasty that ruled parts of Central Asia and the Middle East from the 11th to 14th centuries...

 warlord, and a uterine brother of the sultan

Sultan

Sultan is a title with several historical meanings. Originally, it was an Arabic language abstract noun meaning "strength", "authority", "rulership", and "dictatorship", derived from the masdar سلطة , meaning "authority" or "power". Later, it came to be used as the title of certain rulers who...

 Tughril.

İbrahim commanded a successful raid against the eastern provinces of the Byzantine Empire

Byzantine Empire

The Byzantine Empire was the Eastern Roman Empire during the periods of Late Antiquity and the Middle Ages, centred on the capital of Constantinople. Known simply as the Roman Empire or Romania to its inhabitants and neighbours, the Empire was the direct continuation of the Ancient Roman State...

 which culminated in the Battle of Kapetrou

Battle of Kapetrou

The Battle of Kapetron or Kapetrou was fought between the Byzantine-Georgian armies and the Seljuq Turks on September 10 or September 18, 1048...

 in September 1048. The Arab chronicler Ibn al-Athir reports that he brought back 100,000 captives and a vast booty loaded on the backs of ten thousand camels. In 1058, he revolted against his brother, but was eventually defeated and personally strangled by Toğrül with his bowstring at Baghdad

Baghdad

Baghdad is the capital of Iraq, as well as the coterminous Baghdad Governorate. The population of Baghdad in 2011 is approximately 7,216,040...

.