を買わせた

made someone buy

→ を
phrase Rare #32,541
made someone buy The person marked by を is made or persuaded to buy something; the thing bought is usually stated elsewhere in the sentence.
JA: 友達を新しいゲームを買わせた。
EN: I made my friend buy a new game.

セールスマンは両親を説得して百科事典を買わせた。

The salesman persuaded my parents to buy an encyclopedia.

私はついに彼を説得してそれを買わせた。

I finally convinced him to buy it.

とうとうそのセールスマンは私を説得して高価な機械を買わせた。

In the end, the salesman persuaded me to buy an expensive machine.

私の妻は私を説得して新車を買わせた。

My wife persuaded me to buy a new car.

私は彼を説得して新しいベッドを買わせた。

I persuaded him to buy a new bed.