At the time when Vinci was living in Rome and executing the works mentioned above, Luca Martini was made by the Duke of Florence proveditor of Pisa, and in his office he did not forget his friend, and therefore wrote to him that he was preparing a room for him and was providing a block of marble of three braccia, so that he might return from Rome at his pleasure, seeing that while with him he should want for nothing. Vinci, attracted by this prospect and by the love that he bore to Luca, resolved to depart from Rome and to take up his abode for some time in Pisa, where he looked to find opportunities of practising his hand and making trial of his ability. Having therefore gone to Pisa, he found that the marble was already in his room, prepared according to the orders of Luca; but, on proceeding to begin to carve from it an upright figure, he perceived that the marble had in it a crack that diminished it by a braccio. Wherefore, having resolved to change it into a recumbent figure, he made a young River God holding a vase that is pouring out water, the vase being upheld by three children, who are assisting the River God to pour the water forth; and beneath his feet runs a copious stream of water, in which may be seen fishes darting about and water-fowl flying in various parts. This River God finished, Vinci made a present of it to Luca, who presented it to the Duchess, to whom it was very dear; and then, her brother Don Garzia di Toledo being at that time in Pisa, whither he had gone by galley, she gave it to that brother, who accepted it with much pleasure for the fountains of his garden in the Chiaia at Naples.