In a large bowl, combine the yeast mixture with the egg, white sugar, salt, butter, and 2 cups bread flour; beat well.
Add the remaining flour, 1/4 cup at a time, stirring well after each addition. When the dough has begun to pull together, turn it out onto a lightly floured surface, and knead in the currants, raisins, dried cherries, and citrus peel. Continue kneading until smooth, about 8 minutes.
Lightly oil a large bowl, place the dough in the bowl, and turn to coat with oil. Cover with a damp cloth and let rise in a warm place until doubled in volume, about 1 hour.
Lightly grease a cookie sheet. Deflate the dough and turn it out onto a lightly floured surface.
Roll the marzipan into a rope and place it in the center of the dough. Fold the dough over to cover it; pinch the seams together to seal.
Place the loaf, seam side down, on the prepared baking sheet. Cover with a damp cloth and let rise until doubled in volume, about 40 minutes. Meanwhile, preheat oven to 350 degrees F (175 degrees C).
Bake in the preheated oven for 10 minutes, then reduce heat to 300 degrees F (150 degrees C), and bake for a further 30 to 40 minutes, or until golden brown. Allow loaf to cool on a wire rack. Dust the cooled loaf with confectioners' sugar, and sprinkle with the cinnamon.
