However, when Froebe died in April 1962, the organizational work for the Eranos sessions fell squarely on the shoulders of Rudolf Ritsema, and from 1962 to 1982, the year of Portmann's death, the Ritsemas were single-handedly responsible for keeping the tradition of the Eranos Conferences alive.
Following Froebe's death in April 1962, the organizational work for the Eranos sessions was entirely entrusted to Rudolf Ritsema, and from 1962 until Portmann's passing in 1982, the Ritsemas were solely responsible for sustaining the tradition of the Eranos Conferences.