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I need to translate a historical text about nobility and their horses but I'm not sure if it sounds natural for an English speaker? A tradition emerged in the immediate environment of this noble European family to give their horses Polish names such as [listed names]. By "immediate environment" I... show more I need to translate a historical text about nobility and their horses but I'm not sure if it sounds natural for an English speaker?

A tradition emerged in the immediate environment of this noble European family to give their horses Polish names such as [listed names].

By "immediate environment" I mean "the family and everyone closely related to them, those working for them, etc.". Maybe I should use the phrase "inner circles" or "insiders associated with the family"?
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