Michael and Sara are listed under a heading stating that they are "Persons with a License", that they were registered (somewhere, I suppose in the section that's relevant to the number 806) on the 11th of March 1773 (not 1770), and that they were married on the 11 March 1773. The column on the right headed Getrouwt is the marriage date, the column on the right the "Ingeschreven" is the registered date. The "Wede" underneath states that Sara was a weduwe - a widow.