We have notified the next of kin.

我们已经通知了直系亲属。

《柯林斯英汉双解大词典》

She is the next of kin to enable her to become an eccentric person.

是她的至亲使她成为一个孤僻的人。

youdao

And he was born the next of kin, the next of kin to the wayward wind.

而他生下来就是它的近亲，是这阵任性的风之近亲。

youdao

Legally, Russell and Taylor were still married, which made her the next of kin.

FORBES: Death of Real Housewives' Russell Armstrong Sparks Family Fight

Someone had already notified the next of kin, and the funeral-home people were on the way.

NEWYORKER: Beginners

He told me the film was being held for a period while the next of kin were informed.

BBC: NEWS | Americas | Picture power: Casualties of war