Gideon Velthorne: The King
Sansa Velthorne: The Queen
Benjamin Velthorne: The Crown Prince
Spencer Velthorne: The Second Prince
The Dark Prince Velthorne: The Third Prince
Genevieve Velthorne: The First Princess
Christiana Velthorne: The Second Princess
Abigail Velthorne: The Third Princess
Jollene Velthorne: The Fourth Princess
Lilian Velthorne: The Fifth Princess; by marriage, the crown princess
Beatrice Velthorne: The Sixth Princess; by marriage, Spencer's wife
Salviana Velthorne: The Seventh Princess; by marriage, The Dark Prince's wife
Audrey Velthorne: The Kings First Concubine
Lucille Velthorne: The King's Second Concubine
Lawrence Velthorne: The King's Brother
Agatha Velthorne: The King's Brother's Wife
Waren Velthorne: The King's Brother's First Son
Enid Velthorne: The King's Brother's Second Son
Diana Reed: The Queen's Sister
Jaron Velthorne: The Fourth Prince; 1st Son of the First Concubine
Lucas Velthorne: The Fifth Prince; 2nd Son of the First Concubine
Alfie Velthorne: The Sixth Prince; Son of the Second Concubine
Jeniffer Velthorne: The Eighth Princess; Daughter of the Second Concubine
Irene Velthorne: The Ninth Princess; Wife of Jaron
Florence Velthorne: The Tenth Princess; Wife of Lucas
Rose Velthorne: The Eleventh Princess; Wannabe Wife of Alfie
Simon Velthorne: Crown Prince's Son
Philipa Velthorne: 1st Daughter of Spencer
Hazel Velthorne: 2nd Daughter of Spencer
Liam Velthorne: Toddler of Lucas
John Velthorne: 1st Son of Jaron
Madison Velthorne: 1st Daughter of Jaron
Anastasia Velthorne: 2nd Daughter of Jaron
Benedict Velthorne: Bastard of the Second Prince
Rowan: Courter; Not a Velthorne but a wannabe
─ Additional Royal:
Eva Layor: Crown Prostitute (not a Velthorne but has had relationships with several princes)
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'The list of the Royal Family of House Velthorne' with clear demarcations for different generations and relationships:
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'1st Generation - The King's Household'
- 'Gideon Velthorne': The King
- 'Sansa Velthorne': The Queen
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'2nd Generation - The King's Children'
- 'Benjamin Velthorne': The Crown Prince
- 'Lillian Velthorne': The Crown Princess (wife of Benjamin)
- 'Simon Velthorne': Son of Benjamin and Sarah (1st generation of the next line)
- 'Spencer Velthorne': The Second Prince
- 'Beatrice Velthorne': The Sixth Princess (wife of Spencer)
- 'Philipa Velthorne': 1st Daughter of Spencer and Beatrice
- 'Hazel Velthorne': 2nd Daughter of Spencer and Beatrice
- 'The Dark Prince Velthorne': The Third Prince
- 'Salviana Velthorne': The Seventh Princess (The Dark Prince's wife)
- 'Genevieve Velthorne': The First Princess
- 'Christiana Velthorne': The Second Princess
- 'Abigail Velthorne': The Third Princess
- 'Jollene Velthorne': The Fourth Princess
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'Concubine Lineage - The King's Children by Concubines'
- 'Audrey Velthorne': The First Concubine
- 'Jaron Velthorne': The Fourth Prince (1st Son of Audrey)
- 'Lilian Velthorne': The Ninth Princess (wife of Jaron)
- 'John Velthorne': Son of Jaron
- 'Madison Velthorne': 1st Daughter of Jaron
- 'Anastasia Velthorne': 2nd Daughter of Jaron
- 'Lucas Velthorne': The Fifth Prince (2nd Son of Audrey)
- 'Florence Velthorne': The Tenth Princess (wife of Lucas)
- 'Lucille Velthorne': The Second Concubine
- 'Alfie Velthorne': The Sixth Prince (Son of Lucille)
- 'Liam Velthorne': Toddler (Child of Alfie)
- 'Rose Velthorne': The Eleventh Princess (wannabe wife of Allie)
- 'Jeniffer Velthorne': The Eighth Princess (Daughter of Lucille)
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'Extended Royal Family - The King's Siblings and Their Children'
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- 'Lawrence Velthorne': The King's Brother
- 'Agatha Velthorne': Lawrence's Wife
- 'Waren Velthorne': Lawrence's 1st Son
- 'Enid Velthorne': Lawrence's 2nd Son
- 'Diana Reed': The Queen's Sister
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'3rd Generation - The Next Line of the Velthorne Family'
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- 'Benedict Velthorne': Bastard of Spencer
- 'Rowan': Courter, not a Velthorne but a wannabe suitor for any princess
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'Additional Note'
- 'Eva': The "Crown Prostitute" (not a Velthorne, but linked to many princes)
- 'Richard AshBluff': "The Dark Prince's right hand and friend"
- 'Lucius Pennyworth': "The Dark Prince's Best Friend and Shadow."
I would give a more detailed information about their relationship and characters soon