GlotScript records this relationship through single-source attestation. Present-day usage, official status, region and dates are unknown here unless separately sourced. How to interpret the evidence.
Language
Also written in:
'Phags-pa script, created by Drogön Chögyal Phagpa in 1269 for Kublai Khan to write Mongolian, Chinese, Tibetan, and Sanskrit in a single unified script.