The significance of the ninety nine columns is meant to represent the ninety nine officers of the palace (Hulubalang), while the four columns at the center is signify the four senior officials of the palace (Orang Empat Istana). The design of Istana Lama was expected to represent the ideals of familyhood, education, heritage and culture, and the historical bond with the Minangkabau kingdom of Pagaruyung.
