。
She was buried in her hometown.
Literal
She [topic-は] birth hometown [in-に] was-buried.
生まれ故郷 (うまれこきょう) means 'birthplace' or 'hometown where one was born.' 埋葬する (まいそうする) means 'to bury (a body).' The passive ~された indicates she received the burial. This is a solemn, biographical sentence — her final resting place was where she began.