his fiancée
La chica vestida de blanco es su prometida.
The girl dressed in white is his fiancée.
Reclamó el collar que su hijo, Caledon, le compró a su prometida, usted.
He demanded the necklace that his son, Caledon, bought for his fiancée, you.
— Titanic (1997)
Su prometida Doña Inés de Atienza, le acompañará.
His fiancée, Doña Inés de Atienza, will accompany him.
— Aguirre, la cólera de Dios (1972)
She is his fiancée.
I am his fiancée.