Minister Zhang Jiuling, 張九齡 (678–740) held several important posts under Emperor Xuanzong, including head of the imperial library, minister of public works, and commandant of various prefectures, and chancellor to the emperor. He was the subject of several poems by Meng Haoran.
Five of Zhang’s poems are included in the anthology Three Hundred Tang Poems.
Zhang would fall from grace with the emperor, but not before warning the emperor about General An Lushan. This warning would go unheeded and An Lushuan would later instigate a rebellion after Zhang’s death.