company dorector's personal Credit Card - how to track/account for in Company gnucash?

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we have a director of the company who has a personal credit card which
in 90% of payments is being used for company expenses.

generally I'd put is as a sub-account of that person's expenses (with
is a liability account)
My challenge is that I want to track all movements of that Credit Card
even though some of which are non-company related personal expenses.
Is there any way to do this right?

looking forward to suggestions