Hanging widows in tables

Add a non-break style to the text for the last space in a paragraph

Create a character style and call it no-break - and only tick on the No Break function in the Character Style

In your paragraph style you can then add in the Grep Style section 

You'd have to finese the GREP to suit your needs, there's probably a better way than this

(\S+)\s+(\S+)\s*$|(\S+)(\s)(\S+)(\s*[[:punct:]]?)$

This grep is two parts split by the pipe '|'

First search is for the last space in a paragraph

The 2nd part searches for alternate spacing you might encounter in other languages, like French where it could be 'asda dasdkl ?' with spaces before punctuation. 

It should catch most instances if you have any issues we'd need to see exact text to build the GREP. 

This is an example of a short line, also known as a runt line. It is not a widow/orphan typesetting situation.

In a table where you cannot alter the width, you might consider:
Rewriting the expression to be either longer to better fill the short line, or shorter to make it one line?

Rewriting the expression to improve the expression grammatically (as JMLevy suggests) and therefore breaking the line manually to at least improve grammatical phrasing?

A paragraph style controlling the text can have Balance Ragged Lines turned on?

Can you increase the Cell Insets?

Can you make peace with the fact that tables are often unavoidably nicht schön? 

What makes the most sense for my example?

My mother tongue is French, but I think it will be the same in German: none of them.

You should not leave a single word on the line, but you should send the word “ihre” at the beginning of the second line.

Why? There are 2 reasons:

1.  The second line will be longer than the first, so it will be more balanced
2. Grammatically, the possessive adjective should stay with the name it refers to.