What did Rembrandt become famous for doing?

Rembrandt van Rijn, born 15th july 1506 in Leyden Holland. Successful during his lifetime and best known for his dramatic use of light and shadow in his paintings. He was also a prolific print maker. I have seen Rembrandts Portrait of his mother. It is in Wilton House in UK. I do not know much about art but it is Stunning with a capital S !