 Complete the following phrase:  Töbelmann died in the First World War, leaving behind interesting insights for deeper study by future scholars. In fact, Töbelmanns description of the appearance that the monument must have originally taken is accurate in many respects, but he is most important for his first-hand observations. He was the first to suggest that the monument had been erected in the place where the troops of Constantine I had camped before the attack on Maxentius, because if he had wanted to commemorate the victory, he would have placed a monument at the location of the battles beginning i.e. Saxa Rubra or at the location of its successful conclusion i.e. the 