Transformation of the Ottoman Empire
Sultan Suleiman I (r. 1520–1566) was the longest-reigning sultan in Ottoman history, but the last years of his reign were characterized by uncertainty over who would be his successor. Suleiman had three sons who could hope to succeed, Mustafa, Bayezid, and Selim. While the latter two were the children of Suleiman's wife Hurrem Sultan, the first was the son of an earlier concubine. Mustafa may have felt that his half-brothers possessed an unfair advantage over him, and thus worked to secure the favor of the military. Perhaps suspecting that Mustafa planned to dethrone him just as his own father had done to his grandfather, Suleiman acted first and in 1553 ordered that Mustafa be executed. The death of Hurrem Sultan in 1558 triggered open conflict between the two remaining candidates, and Selim ultimately emerged victorious. Suleiman further strengthened his son's position by arranging a marriage between Selim's daughter and the influential Sokollu Mehmed Pasha (Grand Vizier 1565–1579). Suleiman died in 1566, while besieging the fortress of Szigetvar in Hungary, bringing Selim to the throne.
History of Somaliland
At least by the reign of Emperor Amda Seyon I (r. 1314-1344) (and possibly as early as during the reign of Yekuno Amlak or Yagbe'u Seyon), these regions came under Ethiopian suzerainty. During the two centuries that it was under Ethiopian control, intermittent warfare broke out between Ifat (which the other sultantes were under, excepting Shewa, which had been incorporated into Ethiopia) and Ethiopia. In 1403 or 1415 (under Emperor Dawit I or Emperor Yeshaq I, respectively), a revolt of Ifat was put down during which the Walashma ruler, Sa'ad ad-Din II, was captured and executed in Zeila, which was sacked. After the war, the reigning king had his minstrels compose a song praising his victory, which contains the first written record of the word "Somali". Upon the return of Sa'ad ad-Din II's sons a few years later, the dynasty took the new title of "king of Adal," instead of the formerly dominant region, Ifat.