Right next to Notre Dame is the Memorial de la Deportation - a multilevel monument to the French Jews who were deported to the concentration camps.
Mourners frequently say Kaddish there.
It will hardly be the first or last time this beautiful prayer is said there.
I will also point out that the Kaddish is in a dialect of Aramaic known as the Targumic - the dialect in which the Hebrew readings of the synagogue were translated for the people in Jesus' time.
Not quite. The Targum was written by Onkelos, a Roman convert to Judaism approximately 100 years after Jesus. So the language is probably similar to that of the Aramaic of Jesus' time, but slightly different (in much the way that English is different today than 100 years ago).
I've been reading about the funeral. I'm curious which version of the Kaddish is going to be said. The usual Mourner's Kaddish has nothing that is offensive to Christianity. But there is a special Kaddish said only at burial that contains extra lines calling for the rebuilding of the Jerusalem Temple, which obviously conflicts with Catholic theology. It would be odd for it to be said in a Church at a Catholic burial for a cardinal. For that matter, it's darn odd that Jews are saying it in a Church. . . because Jewish law forbids Jews from praying in most churches (and certainly Catholic ones) due to the icons and images.