<page_title> List of Fellows of the Royal Society P, Q, R </page_title> <section_title> P </section_title> <table> <cell> Sir William Portman, 6th Baronet <col_header> Name </col_header> </cell> <cell> 28 December 1664 <col_header> Election date </col_header> </cell> </table>
Sir William was elected a Fellow of the Royal Society on 28 December 1664.