Primary

• Arsene Lupin II Father of Arsene Lupin III
• Arsene Lupin II Son of Arsene Lupin I

Extended

• Arsene Lupin III Friend of Koichi Zenigata
• Arsene Lupin III In love with Fujiko Mine
• Arsene Lupin III Friend of Daisuke Jigen
• Arsene Lupin III Friend of Goemon Ishikawa XIII
• Arsene Lupin I Grandfather of Arsene Lupin III
• Arsene Lupin I Father of Arsene Lupin II
• Arsene Lupin I Boss of Shinobu