Shlishi, R’ Yom Tov of Joigny (a talmid of Rabbeinu Tam, writer of Omnam Keyn, Tosafist, Rishon) found circumstances in 1190 where he determined that suicide was not only mutar, but obligatory. He gave the psak to the Jews of York with him in Cliffords Tower, then he killed his wife and daughters and then himself.
I’m not giving my opinion, nor do I have one of my own; I am merely telling you that there is a clear and well known occasion – during a pogrom, no less – of a rishon sanctioning suicide.