The Renaissance (Original Italian: Rinascimento, from rinascere “to be reborn”) was a cultural movement that spanned the period roughly from the 14th to the 17th century, beginning in Italy in the late Middle Ages and then spreading to the rest of Europe.
In so far as music is concerned, consensus among music historians has been to start the era around 1400, with the end of the medieval era, and to close it around 1600, with the beginning of the Baroque period.
At that time, the cello did not yet exist in the form that we now know it. The viola da gamba occupied the role of bass/tenor voice that the cello would gradually come to occupy in the baroque and classical periods.
For this reason, the music presented here for cello, was all written originally for viola da gamba.