There is a reason you inherited those assets. Not everyone is lucky to have that kind of background.
The reason is that your ancestors valued it and it might have appreciated more in recent time in terms of money, but the value was there from the beginning.
Not very sound financial advice it may sound, but leave those fortune for someone who inherits it from you and feel equally proud as you might be feeling today.
I know people who liquidated assets and are laughing stocks in family for losing all the fortune.