family feud; domestic squabble
General term for a quarrel or trouble within a family, often with a slightly old-fashioned or dramatic tone.
A family feud broke out over the inheritance.
internal power struggle in a daimyo family (Edo period)
Historical term for succession disputes or factional infighting within a daimyo household during the Edo period.
In the Edo period, an internal power struggle in a daimyo family could sometimes lead to the forfeiture of the domain.