The noble Grand Princess was murdered by the people closest to her, only to be reborn a thousand years later in the modern world.
Now she is a poor, powerless nobody with no parents, no money, and no connections, someone anyone can bully. Even the husband she married by contract is surrounded by admirers and treats her like she isn't there.
With a single divorce agreement, the Grand Princess leaves with nothing.
But from then on, her life takes off.
She makes a name for herself in archaeology and appraising antiques. Her calligraphy and paintings are worth a fortune. Even the old man she saves on a whim turns out to be someone important.
Her biological father comes looking for her and hands over a fortune worth billions.
Later, her ex-husband comes to find her. “Your Highness, Grand Princess. Long time no see.”
Awesome!