Complex sentence: Louis-Auguste de Bourbon was born at the Château de Saint-Germain-en-Laye on 31 March 1670 and was immediately placed in the care of one of his mother's acquaintances, the widowed Madame Scarron.
Split into simpler sentences: Louis-Auguste de Bourbon was born at the Château de Saint-Germain-en-Laye on March 31 1670. He was placed in the care of one of his mother's friends, the widowed Madame Scarron.