<page_title> German submarine U-91 (1941) </page_title> <section_title> Patrols </section_title> <table> <cell> 4 <col_header> # </col_header> </cell> <cell> Lorient <col_header> Departure </col_header> </cell> <cell> 29 April 1943 <col_header> Date </col_header> </cell> <cell> Brest <col_header> Arrival </col_header> </cell> <cell> 7 June 1943 <col_header> Date </col_header> </cell> </table>
German submarine U-91's number four began from Lorient on 29 April 1943 and terminated in Brest on 7 June.