Rasarnavasudhakara 1.109

1.109

atha dhīra-śāntaḥ -
śama-prakṛtikaḥ kleśa-sahiṣṇuś ca vivecakaḥ | 76cd
lalitādi-guṇopeto vipro vā sacivo vaṇik |
dhīra-śāntaś cārudatta-mādhavādir udāhṛtaḥ ||

Now the dhīraśānta:
Of a tranquil nature, enduring distress, and discerning, / endowed with grace and other virtues, a Brahmin or a minister or a merchant— / such is cited as the dhīraśānta, such as Cārudatta, Mādhava, and others.