Arnold Rosé was born in Iaşi (Jassy) in what is now Romania. His family was Jewish. Their name at that time was Rosenblum. He had three brothers. All four boys were musical and so his parents decided to move to Vienna which was a big city in Austria where there was lots of music. Arnold’s father was a carriage builder. In those days people often travelled by horse and cart. His father made good quality carriages and he made plenty of money from his business.