The Rebbe Rashab and family attended his mother, Rebbetzin Rivka’s Seder. The yeshiva students had their own Seder. There was no other public Seder in the Lubavitch court. Rebbetzin Rivka would make the Charoses for anyone who needed it. This included her own Seder guests, the yeshiva students and anyone else who lived in Lubavitch.