- "How utterly romantic and human."
- ―Hego Damask to Cosinga Palpatine, regarding his grandfather
The Human male great grandfather of Palpatine lived more than a century before the Battle of Yavin. According to Cosinga Palpatine, the father of Palpatine, Palpatine's great grandfather was a member of the House Palpatine who, around 135 BBY, learned that the most recent Gungan war on Naboo had been manipulated by Houses Tapalo and Veruna. He challenged Bon Tapalo's father to a duel of honor, and eventually succumbed to his injuries at Tapalo's blade.
- Darth Plagueis (First mentioned)