his/her uncle
Él llamó a su tío tan pronto como llegó a Matsuyama.
He called his uncle as soon as he arrived in Matsuyama.
Ponemos a su tío Pánfilo de juez.
We appoint their uncle Pánfilo as judge.
— Algunos hombres buenos (1992)
Helen visita a su tío cada domingo.
Helen visits her uncle every Sunday.