New research shows there were at least three Irish-born victims of the Holocaust.
The finding was announced at a ceremony at the Mansion House in Dublin this evening as part of the events being held around the world to mark International Holocaust Remembrance Day.
Isaac Shishi, Ephraim Saks and his sister Lena Saks, were all born in Ireland, but their families returned to Europe when they were children.
The three Irish-born citizens and members of their families were murdered by the Nazis in the Holocaust.
Until now, Esther Steinberg, who had lived here for a time, was the only Jewish person from Ireland known to have died in the Holocaust.
Six million Jewish people lost their lives in Nazi German concentration and extermination camps during World War Two.
Others were persecuted or murdered by the Nazis, under the rule of Adolf Hitler, because of their ethnicity, disability, sexual orientation, political affiliations or religious beliefs.
President Michael D Higgins, the Tánaiste Simon Coveney and the Minister for Justice Charlie Flanagan are among the dignitaries attending the memorial event in the Mansion House this evening.
They have been joined by the four survivors of the camps who live in Ireland, Suzi Diamond, Tomi Reichental, Jan Kaminski and Walter Sekules.
As part of the ceremony, six candles will be lit for the six million Jewish people who perished in the Holocaust as well as candles for other victim groups.
School children will also read a scroll of the names of some of the victims.
At Auschwitz in Poland, one of the most notorious Nazi German concentration and extermination camps, survivors returned to lay wreaths, 74 years on from the camp’s liberation.
The flowers were laid against the so-called Wall of Death at Block 11.
It is estimated that 1.1 million people died in Auschwitz, which has today become a symbol of the Holocaust and the atrocities of World War Two.