Fabulae Syrae XXXI - 2. Prometheus
Postquam deī omnia cētera animālia in mundō posuerant et etiam hominēs ex terrā ūmidā et mollī ignī mixtā confēcerant, Epimetheō (Dat.), Prometheī fratrī (Dat.), imperāvērunt ut singulīs animālibus mūnera daret.
I was wondering why fratrī was Dative. Are Epimetheō and fratrī in apposition?