The Princess of Goodness

Princess Lodi's father, the King, was opposed to her dream of building a factory for the poor people to work in. He was angry when he found out that she was giving her money and forces her to move all the way to her aunt's country mansion. On the way, a storm blew the princess's carriage into the river, causing her to lose her memory! What did the king and queen do after they lost their daughter?