How to 301 redirect to WP parent category?

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PHP

Apache

redirection

WordPress

I need 301 redirects to parent categories via .htaccess file or via plugin in WP:

/parent-category-1/item-1/ -> /parent-category-1/
/parent-category-2/item-1/ -> /parent-category-2/
/parent-category-3/item-1/ -> /parent-category-3/
...
/parent-category-10/item-1/ -> /parent-category-10/


Only the parent category changes.

The name link "item-1" always remains the same, but each "item-1" page has its own parent category.

What I have tried:

standard methods don't work