Looking for a morning babysitter in the second half of July

Hallo, I am a visiting professor at Heidelberg University. I am looking for a babysitter from my 9 years old daughter Irene, from 17 July to 28 July, for 4 days per week (8 days in total) from 8,30 to 15. I live in a Guest House in the campus Neuenheimer Feld. Irene is quiet and autonomous, but both me and my partner will be busy in those days and we would like somebody to oversee her and play with her. She is a native speaker of Italian, Spanish, and Catalan, but she knows some English. Also German may work, if you have a good connection with children.