を宣告された

was sentenced to

→ を
phrase Rare #34,059
was sentenced to Used for a sentence or verdict being pronounced on someone. The exact English phrasing depends on what comes before it, such as “was sentenced to death” or “was declared not guilty.”
JA: 彼は懲役五年を宣告された。
EN: He was sentenced to five years in prison.

彼は殺人罪を宣告された。

He was convicted of murder.

被告は精神状態を理由に無罪を宣告された。

The defendant was found not guilty on the grounds of their mental state.

彼は死刑を宣告された。

He was sentenced to death.

被告人は死刑を宣告された。

The defendant was sentenced to death.