Huang Ziyuan was a calligrapher and industrialist in the late Qing Dynasty. He learned from the strengths of other calligraphers and became his own family. The imitations of "Mysterious Tower" and "Song of Righteousness" were widely circulated as textbooks for Mongolian calligraphy learning at that time.
Source: "Collected Poems of Huang Ziyuan in Linhua Garden", Wenming Book Company 1941 edition.