Helvennia of Bonisagus
Helvennia of House Bonisagus is likely considered to be a dark spot on the House's reputation. Her right to take other magi's apprentices was upheld in the Rhine Tribunal in 1172 AD, despite the fact that they often died in her experimentation not long after she took them. She was soon after killed by her victim's former masters in Wizard's War. For more information, see Houses of Hermes: True Lineages.