Suggest me a mystery book that involves family

Hello, I'm a sucker for mystery books that involves family, anything goes! Inheritance disputes, death of a relative, sibling rivalry, dysfunctional parent and child relationship, finding a missing relative, etc. Anything as long as it involves family

Some books I enjoyed that fit the criteria:

• The Galton Case by Ross MacDonald (Mom wants to find her son)
• The Way Some People Die by Ross MacDonald (Mom wants to find her daughter)
• The Inugami Curse by Seishi Yokomizo (Killing over inheritance)
• The Devil's Flute Murders by Seishi Yokomizo (The killer is a product of incest between brother and sister)
• Crooked House by Agatha Christie (Death of a patriarch/grandpa and finding his killer)
• Ordeal by Innocence by Agatha Christie (Death of a stepmom and finding her actual killer)
• Appointment with Death (Death of a tyrannical mother)