Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Tanasīva
Tanasīva:A landowner of Mātuvelanga and a supporter of Kupikkala-Mahātissa Thera.When Vattagāmanī,the king,was in hiding,the thera entrusted him to the care of Tanasīva,who,for fourteen years,looked after him,his queen,Anulādevī,and his two sons.Then,as the result of a dispute between Anulā and Tanasīva’s wife,Vattagāmanī shot him dead.Mhv.xxxiii.52-65.