Complex sentence: Marc Joulaud studied law, first at the Maine university at Le Mans where he obtained a public law bachelor, and a master degree at University Paris-1 Panthéon-Sorbonne.
Split into simpler sentences: Marc Joulaud studied law, first at the Maine University in Le Mans where he obtained a public law bachelor. He also obtained a master degree in the same field at University Paris-1 Panthéon-Sorbonne.