suffer under (one)
To be forced to live or cope with the oppression of some brutal or repellent figure of authority. We suffered under the dictatorship for nearly 40 years, before the revolution brought democracy to our country. If we have to suffer under another pig-headed general manager like Tom, I swear I'll hand in my two weeks' notice.
suffer under someone
to endure the punishments or bad treatment of someone. The citizens suffered badly under the rule of the cruel king. We suffered under Carlos and we will suffer under his successor.