Found the following article online, use it to answer the question: What is the full name of the person who had use of a room in the apartments?

The date for the first performance of L'Orfeo, 24 February 1607, is evidenced by two letters, both dated 23 February. In the first, Francesco Gonzaga informs his brother that the "musical play" will be performed tomorrow; it is clear from earlier correspondence that this refers to L'Orfeo. The second letter is from a Gonzaga court official, Carlo Magno, and gives more details: "Tomorrow evening the Most Serene Lord the Prince is to sponsor a [play] in a room in the apartments which the Most Serene Lady had the use of ...it should be most unusual, as all the actors are to sing their parts." The "Serene Lady" is Duke Vincenzo's widowed sister Margherita Gonzaga d'Este, who lived within the Ducal Palace. The room of the premiere cannot be identified with certainty; according to Ringer, it may have been the Galleria dei Fiumi, which has the dimensions to accommodate a stage and orchestra with space for a small audience.There is no detailed account of the premiere, although Francesco wrote on 1 March that the work had "been to the great satisfaction of all who heard it", and had particularly pleased the Duke. The Mantuan court theologian and poet, Cherubino Ferrari wrote that: "Both poet and musician have depicted the inclinations of the heart so skilfully that it could not have been done better ... The music, observing due propriety, serves the poetry so well that nothing more beautiful is to be heard anywhere". After the premiere Duke Vincenzo ordered a second performance for 1 March; a third performance was planned to coincide with a proposed state visit to Mantua by the Duke of Savoy. Francesco wrote to the Duke of Tuscany on 8 March, asking if he could retain the services of the castrato Magli for a little longer. However, the visit was cancelled, as was the celebratory performance.There are suggestions that in the years following the premiere, L'Orfeo may have been staged in Florence, Cremona, Milan and Turin, though firmer evidence suggests that the work attracted limited interest beyond the Mantuan court....

Margherita Gonzaga d'Este