After Siegfried temporarily broke free of Soul Edge's influence, he returned home and overheard Margaret praying for the safety of him and his father. It was then he realized he wasn't ready to return to her yet.
After the events of Soulcalibur IV, she was reunited with her son. Unfortunately, her poor health begun to take it's toll on her. She was only able to spend two short years with her son before passed away under the tender care of Siegfried and Salia.
- Revealed in Soulcalibur IV, Frederick has brown hair and brown eyes which indicates that Siegfried may have inherited his blonde hair and blue eyes from his mother.
- Even if both the parents have brown hair and brown eyes, their children may have blonde hair and blue eyes if one of their grandparents has blonde hair and blue eyes.
- Margaret appears to have some sort of connection to Dampierre, due to the expanded Japanese Soul Chain on the Broken Destiny developer's blog mentioning that Dampierre was in love with a woman named 'Margaret'. In addition, some of Dampierre's moves mention the name 'Margaret'. This could also be another woman, not necessarily Siegfried's mother.