While strolling through central Paris last week, I checked out the old St Gervais church originally owned by the Commandery of the Knights Templar (The Order of King Solomon's Temple).
Though the church was altered since the order was banned by the Pope for heresy in 1312, some traces remain.
One curious symbolical remnant are the menorahs in the chancel of the catholic edifice.
Perhaps, like Righteous Gentile JTFers, part of the fabled treasure of the Templars was their deep appreciation of Judaism.