The Collegio or Cabinet of Ministers, formed the third tier in the pyramid. The College was composed of the following members: The Doge, his six councillors, and the three chiefs of the Court of Appeal; these ten persons formed the Collegio minore, or Serenissima Signoria; in addition to these there were the six Savii Grandi; the five Savii di Terra ferma, and the five Savii da mar; a body of twenty-six persons in all, forming the College. Beginning with the lowest in rank, the Savii agli ordini, or da mar, were, as their name implies, a Board of Admiralty; but they acted in that capacity under the orders of the Savii Grandi upon whom the naval affairs of the Republic immediately depended. The Savii agli ordini had a vote but no voice in the College; this post was given, for the most part, to young and promising politicians; it was a training school for statesmen: 'Officio loro,' says Giannotti, 'e tacere ed ascoltare.' The office lasted for six months only; and so there was a constant stream of young men passing through the political school, and becoming intimately acquainted with the affairs of the Republic and the methods of government. How excellent that school must have been will become apparent as we proceed to note the functions of the College of which the Savii agli ordini formed a silent part. Next in order above the Savii agli ordini came the Savii di Terra ferma. This Board was composed of five members; the Savio alia Scrittura, or Minister for War; the Savio Cassier, or Chancellor of the Exchequer; the Savio alle ordinanze, or minister for the native militia in the cities on the mainland; the Savio ai da mo, or minister for the execution of all measures voted urgent; the Savio ai Ceremoniali, or Minister for Ceremonies of State. These Savii di Terra ferma, like the Savii agli ordini, held office for six months only. The six Savii Grandi, who came above the Savii di Terra ferma, superintended the actions of the two boards below them, and, if necessary, issued orders which would override those of the other ministers. They were, in fact, the responsible directors of the State. The Savii Grandi were required to prepare all business to be laid before the College, where it was first discussed and arranged before being submitted to the Senate for approval. To facilitate this labour of preparation, each of the Savii Grandi took a week in turn, and the Savio of the week was, in fact, Prime Minister of Venice. It was he who read dispatches, granted audiences to ambassadors, and prepared official replies. The Doge presided in the College, it is true, but it was the Savio of the week who opened the business, and suggested the various measures to be adopted.