Complex sentence: He accompanied Valignano when the latter came to the capital area in March 1581 and caused something of a sensation, several people died in a crush while clamouring to get a look at him.
Split into simpler sentences: He accompanied Valignano when the latter came to the capital area in March 1581 and caused something of a sensation. In one event, several people were crushed to death while clamouring to get a look at him.