Complex sentence: Mustafa Zihni Pasha was an Ottoman high official of ethnic Kurdish background, who held a number of ministerial posts and a founding member of the nationalist Kürt Teali Cemiyeti society.
Split into simpler sentences: Mustafa Zihni Pasha was an Ottoman high official of ethnic Kurdish background, who held a number of ministerial posts. He was also a founding member of the nationalist Kürt Teali Cemiyeti society.