Primary

• Ciel Phantomhive Nephew of Angelina Durless
• Ciel Phantomhive Son of Rachel Phantomhive
• Ciel Phantomhive Son of Vincent Phantomhive
• Ciel Phantomhive Engaged to Elizabeth Midford
• Ciel Phantomhive Master of Sebastian Michaelis

Extended

• Sebastian Michaelis Servant of Ciel Phantomhive
• Elizabeth Midford Engaged to Ciel Phantomhive
• Elizabeth Midford Master of Paula
• Elizabeth Midford Cousin of Ciel Phantomhive
• Angelina Durless Aunt of Ciel Phantomhive
• Angelina Durless Sister of Rachel Phantomhive
• Rachel Phantomhive Wife of Vincent Phantomhive
• Rachel Phantomhive Mother of Ciel Phantomhive
• Rachel Phantomhive Sister of Angelina Durless
• Vincent Phantomhive Husband of Rachel Phantomhive
• Vincent Phantomhive Father of Ciel Phantomhive