Henry Stuart, Duke of Albany, also known as Lord Darnley, was the second husband and cousin of Mary Queen of Scots. He charmed her with his good looks and great manners. However, after they were married, he revealed his true nature. He was an aggressive and unpleasant individual and also had alcohol issues. The negative opinion about Lord Darnley was general, so it was not a surprise that he ended up being murdered. In fact, some believed the Queen had been aware of the murder plans and that the murder was carried out by the man who later became her next husband.
