The phrase "natural heir" means someone who is expected to inherit or take over something because they have a strong connection or ownership rights to it, usually through family or genetics. Full definition
The development will be disappointing to Mr Umunna, the shadow business secretary, and Tristram Hunt, the shadow education secretary, who are both seen as natural heirs to Blair. (independent.co.uk)
Selling to a search fund can be a compelling option, particularly for company owners without a natural heir or those who want to avoid private equity restructuring or the brand dissolution can result from a corporate acquisition. (entrepreneur.com)
According to the Hammurabi Code, if a man died without a natural heir, his possessions would go to the chief servant of his house, in this case, Eliezer of Damascus. (redeeminggod.com)