Sort posts by child category name

I have a category year and child-category names with year numbers 1966, 1972, 1980 etc.

I have a category publisher and child-categories with publisher names.

Each post is assigned a year child-category and a publisher child-category.

When listing posts with child-category of a specific publisher, I want to order them according to the name of the child category of category year.

I looked around and didn't find a solution.

Thanks