を引き継いだ

… took over

→ を
phrase Uncommon #16,615
… took over を marks what was taken over or carried on. 引き継いだ is the past form of 引き継ぐ, which can refer to taking over a role or business, or carrying on someone’s wishes or legacy.
JA: 父から店を引き継いだ。
EN: I took over the shop from my father.

父の財産を引き継いだ。

I inherited my father's estate.

彼はその商売を引き継いだ。

He took over the business.

彼が引退したとき、彼の息子が商売を引き継いだ。

When he retired, his son took over the business.

彼は父親の会社の営業を引き継いだ。

He took over the sales operations at his father’s company.

彼は彼の父の意志を引き継いだ。

He carried on his father's wishes.

彼は仕事を引き継いだ。

He took over the job.

彼は父親の仕事を引き継いだ。

He took over his father's business.

彼はそのビジネスを引き継いだ。

He took over the business.

彼女は彼の意志を引き継いだ。

She carried on his legacy.

彼は父親の会社の経営を引き継いだ。

He took over the management of his father's company.