Pargalı Ibrahim Pasha was a friend of Suleiman from before his accession.
Ibrahim was originally a Christian from Parga (in Epirus), who was captured in a raid during the 1499–1503 Ottoman–Venetian War, and was given as a slave to Suleiman most likely in 1514.
Ibrahim converted to Islam and Suleiman made him the royal falconer, then promoted him to first officer of the Royal Bedchamber.
Ibrahim Pasha rose to Grand Vizier in 1523 and commander-in-chief of all the armies.
Suleiman also conferred upon Ibrahim Pasha the honor of beylerbey of Rumelia (first-ranking military governor-general), granting Ibrahim authority over all Ottoman territories in Europe, as well as command of troops residing within them in times of war.

During his thirteen years as Grand Vizier, his rapid rise to power and vast accumulation of wealth had made Ibrahim many enemies at the Sultan's court.
Suleiman's suspicion of Ibrahim was worsened by a quarrel between the latter and the finance secretary (defterdar) İskender Çelebi.
The dispute ended in the disgrace of Çelebi on charges of intrigue, with Ibrahim convincing Suleiman to sentence the defterdar to death.
Ibrahim also supported Şehzade Mustafa as the successor of Suleiman.
This caused disputes between him and Hürrem Sultan, who wanted her sons to succeed to the throne.
Ibrahim eventually fell from grace with the Sultan.
Suleiman consulted his Qadi, who suggested that Ibrahim be put to death.
The Sultan recruited assassins and ordered them to strangle Ibrahim in his sleep.
Pargalı Ibrahim Pasha was a friend of Suleiman from before his accession. Ibrahim was originally a Christian from Parga (in Epirus), who was captured in a raid during the 1499–1503 Ottoman–Venetian War, and was given as a slave to Suleiman most likely in 1514. Ibrahim converted to Islam and Suleiman made him the royal falconer, then promoted him to first officer of the Royal Bedchamber. Ibrahim Pasha rose to Grand Vizier in 1523 and commander-in-chief of all the armies. Suleiman also conferred upon Ibrahim Pasha the honor of beylerbey of Rumelia (first-ranking military governor-general), granting Ibrahim authority over all Ottoman territories in Europe, as well as command of troops residing within them in times of war.
During his thirteen years as Grand Vizier, his rapid rise to power and vast accumulation of wealth had made Ibrahim many enemies at the Sultan's court. Suleiman's suspicion of Ibrahim was worsened by a quarrel between the latter and the finance secretary (defterdar) İskender Çelebi. The dispute ended in the disgrace of Çelebi on charges of intrigue, with Ibrahim convincing Suleiman to sentence the defterdar to death. Ibrahim also supported Şehzade Mustafa as the successor of Suleiman. This caused disputes between him and Hürrem Sultan, who wanted her sons to succeed to the throne. Ibrahim eventually fell from grace with the Sultan. Suleiman consulted his Qadi, who suggested that Ibrahim be put to death. The Sultan recruited assassins and ordered them to strangle Ibrahim in his sleep.
Suleiman the Magnificent