Complex sentence: With the arrival of Túpac Yupanqui, Guapondelig was renamed Tumebamba and the palace of Pumapungo was constructed which began to govern the northern sector of the Inca "empire".
Split into simpler sentences: With the arrival of Túpac Yupanqui, Guapondelig was renamed Tumebamba. He had the palace of Pumapungo constructed, from which he governed the northern sector of the Inca "empire".