 When he became Archbishop he took the shell in his coat of arms.It is also found in the insignia of the Schottenkloster in Regensburg, where the major seminary of that diocese is located, a place where Benedict taught as a professor of theology.Finally, the pilgrimage symbolism of the shell may also refer both to the reconfigured role of the pope as not only ruler, but also pilgrim among the peoples and nations of the world.