In the back was a fresco not attributed to Benozzo Gozzoli and I wondered why. It is in the old Sacristy in San Lorenzo and is a specific night sky depiction usually said to be...
http://en.wikipedia.org/wiki/Ren%C3%A9_of_Anjou. This fresco shows the night sky over Florence as it looked on 4 July 1442, marking René d’Anjou’s propitious arrival in the city. The artist probably relied on Paolo dal Pozzo Toscanelli’s astronomical advice.
In fact Rene d'Anjou was in Florence- In 1442 he as forced to leave Naples and spent a short time in Florence and Northern Italy, by the end of the year had returned to Provence.
Apparently in 1999 the first computer generated copy of the Sun's transit through the night sky in the fresco was offered. The date was thought not to be 4th July 1442, but 6 July 1439 which was session 6 of the Council of Florence who declared "let the heavens and Earth Rejoice" (a thread I had opened here a little while ago.)
The Pope declared in part....
Now I start to read the italian book...I discover it s about the astrological influences in the Procession of the Maji, and relationship to other artworks of the time.Eugenius, bishop, servant of the servants of God, for an everlasting record. With the agreement of our most dear son John Palaeologus, illustrious emperor of the Romans, of the deputies of our venerable brothers the patriarchs and of other representatives of the eastern church, to the following.
Let the heavens be glad and let the earth rejoice. For, the wall that divided the western and the eastern church has been removed, peace and harmony have returned, since the corner-stone, Christ, who made both one, has joined both sides with a very strong bond of love and peace, uniting and holding them together in a covenant of everlasting unity. After a long haze of grief and a dark and unlovely gloom of long-enduring strife, the radiance of hoped-for union has illuminated all.
Let mother church also rejoice. For she now beholds her sons hitherto in disagreement returned to unity and peace, and she who hitherto wept at their separation now gives thanks to God with inexpressible joy at their truly marvellous harmony. Let all the faithful throughout the world, and those who go by the name of Christian, be glad with mother catholic church. For behold, western and eastern fathers after a very long period of disagreement and discord, submitting themselves to the perils of sea and land and having endured labours of all kinds, came together in this holy ecumenical council, joyful and eager in their desire for this most holy union and to restore intact the ancient love. In no way have they been frustrated in their intent. After a long and very toilsome investigation, at last by the clemency of the holy Spirit they have achieved this greatly desired and most holy union. Who, then, can adequately thank God for his gracious gifts?' Who would not stand amazed at the riches of such great divine mercy? Would not even an iron breast be softened by this immensity of heavenly condescension?
It is wondered why the Chapel fresco was so important made more than 20 years after the events of 1439 which so clearly shows the influence in Florence of the Council and Eastern Princes who came...and why everyone in the fresco is getting ready for Hunting or Hunting whilst the Procession winds it's way uphill.
To be con't..