Garudapurana 1.56.1

1.56.1

śrīgaruḍamahāpurāṇam- 56
hariruvāca /
sapta medhātitheḥ putrāḥ plakṣadvīpeśvarasya ca /
jyeṣṭhaḥ śāntabhavo nāma śiśirastadantaraḥ //

Hari said: / Seven were the sons of Medhātithi, the lord of Plakṣadvīpa; / the eldest was named Śāntabhava, and next to him was Śiśira;