tǔ bō wáng cháo
Tibetan Tubo Dynasty 7th-11th century AD
吐
tǔ
to spit
蕃
bō
see 吐蕃[Tu3 bo1]
王
wáng
king or monarch
朝
cháo
abbr. for 朝鮮|朝鲜[Chao2 xian3] Korea