You could use a TC field to display
IV Life and Works ...................
It might help to use http://www.gmayor.com/table_of_contents_addin.html which makes the task easier. Select the IV and the following line and use Mark TOC Entry. IV to 4 may be a step too far to achieve automatically, but you can edit the inserted field. e.g. { TC "4 -Life and works" \l "1" }

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Graham Mayor - MS MVP (Word) (2002-2019)
Visit my web site for more programming tips and ready made processes www.gmayor.com