Primary

• Zechs Marquise Older Brother of Relena Darlian
• Zechs Marquise Friend of Treize Khushrenada
• Zechs Marquise Husband of Lucrezia Noin
• Zechs Marquise Brother-in-law of Heero Yuy

Extended

• Lucrezia Noin Wife of Zechs Marquise
• Lucrezia Noin Sister-in-law of Relena Darlian
• Lucrezia Noin Sister-in-law of Heero Yuy
• Relena Darlian Younger Sister of Zechs Marquise
• Relena Darlian Wife of Heero Yuy
• Relena Darlian Sister-in-law of Lucrezia Noin
• Relena Darlian Adoptive Daughter of Mrs. Darlian
• Relena Darlian Adoptive Daughter of Vice Foreign Minister Darlian
• Treize Khushrenada Friend of Zechs Marquise
• Treize Khushrenada Nephew of Duke Dermail
• Treize Khushrenada Cousin of Dorothy Catalonia
• Heero Yuy Husband of Relena Darlian
• Heero Yuy Brother-in-law of Zechs Marquise
• Heero Yuy Brother-in-law of Lucrezia Noin
• Heero Yuy Pilot of Wing Gundam
• Heero Yuy Pilot of Wing Gundam Zero
• Heero Yuy Pilot of XXXG-00W0 Wing Gundam Zero
• Heero Yuy Pilot of Mercurius
• Heero Yuy Pilot of Vayeate