In Symphonie fantastique Berlioz imagines himself, the lovelorn artist, attempting suicide by opium poisoning. He doesn’t administer a lethal dose as intended, but instead succumbs to a deranged, drug-fueled dream in which he has killed his beloved and faces execution for the crime.
When Berlioz finally met Harriet in 1832, she was unaware that she had been the inspiration for this grandiose, grisly vision. They were married the following year and produced a son, but the reality was somewhat different to the fantasist and they separated in 1844.
Source: Limelight Magazine