Antonio Stradivari had his violinmaker studio in Cremona during his whole life. His teacher lived and worked there, too.
Here is the Generations-Tree (teacher - pupil):
 
 

Andrea Amati (~1505 - ~1580)    |______________________    |                      | Girolamo Amati         Antonio Amati (1561 - 1630)          (~1540 - ?)    | Nicolo Amati (1596 - 1684)    |_____________________________________________    |                      |                      | Girolamo II. Amati     Andrea Guarneri        Antonio Stradivari (1649 - 1740)          (1626 - 1698)          (~1644 - 1737)     ______________________|                      |______________________    |                      |                      |                      | Pietro Guarneri        Giuseppe Guarneri      Francesco Stradivari   Omobono Stradivari (1655 - 1720)          filius Andreae         (1671 - 1743)          (1679 - 1742) Werkstatt in Mantua    (1666 - ~1739)     ______________________|    |                      | Pietro II. Guarneri    Bartholomeo Giuseppe (1695 - 1762)          Guarneri "del Gesu" Werkstatt in Venedig   (1698 - 1744)

Antonio Stradivari and the first of the Guarneri family were pupils of Nicolo Amati, a master, whose works where well known far outside Italy. Nicolo's grandfather Andrea Amati, who could be understood as one of the inventors of the new instrument "violin" had worked for kings and lords outside of his country.
 
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