Question: who was commissioned to paint the scrovegni ( arena ) chapel
Answer: Giotto

title: Scrovegni Chapel
text: Scrovegni Chapel The Scrovegni Chapel (, also known as the Arena Chapel), is a small church, adjacent to the Augustinian monastery, the "Monastero degli Eremitani" in Padua, region of Veneto, Italy. The chapel and monastery are now part of the complex of the Museo Civico of Padua. The chapel contains a fresco cycle by Giotto, completed about 1305 and considered to be an important masterpiece of Western art. Giotto and his team covered all the internal surfaces of chapel with frescos, including the walls and the ceiling. The nave is 20.88 metres long, 8.41 metres wide, and 12.65 metres high.