YOU SAID:
燃やされた昔の肖像画
INTO JAPANESE
燃やされたかれの肖像画
BACK INTO ENGLISH
Portrait of him burned
INTO JAPANESE
彼の肖像画が燃えた
BACK INTO ENGLISH
His portrait burned
INTO JAPANESE
彼の肖像画は燃えた
BACK INTO ENGLISH
His portrait burned
That didn't even make that much sense in English.