Kushan
Gupta
Maurya
Pushyabhuti
Harshacharita
Kadambari
Ratnavali
Harshacharita and Kadambari
Rajyavardhana
Prabhakaravardhana
Psushyabhui
Gruhavarma
Harshavardhana
Devagupta
Rajyapala
Itsing
Fahien
Hiuen Tsang
All the above