Norbert Merkl’s collection, comprising one viola, two violins and 61 bows, were stolen on the morning of 18 August 2025 while he and his family were overseas on holiday

Viola Francesco Mantegazza

Viola by Francesco Mantegazza with Pietro Mantegazza label. Certified by Kenneth Warren, Chicago

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Norbert Merkl has had his entire instrument and bow collection stolen from apartment in Gröbenzell, near Munich in Germany.

Merkl, the solo violist of the Munich Radio Orchestra for 41 years, is a passionate enthusiast and collector of violins, violas and bows. His collection comprises a Francesco Mantegazza viola, an 1827 J.B. Vuillaume violin, an Enrico Marchetti violin, and 61 bows.

Of his bow collection, his most valuable items include an 1890 Sartory violin bow, a Pierre Simon violin bow and a Nicolas Maire viola bow. The three instruments and these three bows have an estimated worth of around €800,000.

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1827 J.B. Vuillaume no.67 violin certificate from Bernard Millant

Enrico Mantegazza certificat Eric Blot

Enrico Marchetti violin certificate by Eric Blot

He outlined the situation to The Strad: ’My entire collection was kept in a 300kg safe that stood in my bedroom. While I was on holiday in Thailand with my whole family, my apartment was broken into on August 18 at around 2:15 a.m., and the safe with its contents was stolen. 

’According to the criminal police, the safe was most likely transported away by three men using a hand truck via an external staircase and loaded into a small truck. The perpetrators left the hand truck behind in the garden.’

Merkl says that all of the certificates and valuation reports were also kept in the safe.

Viola bow Sartory 1890 (1)

Certificate for 1890 Sartory viola bow by Pierre Guillaume

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Pierre Simon violin bow, certified by Bernard Millant

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Nicolas Maire viola bow certified by Bernard Millant, pictured in L’archet no.18

More information and photos can be found via the websites of musicalchairs  and the Association of German Violin Makers

Merkl is offering a reward of €50,000 for information leading to the collection’s recovery. The collection was stolen from his address, Weiherweg 4, 82194 Gröbenzell, Germany.

Merkl can be contacted at n.merkl@web.de or +49 177 1592876.

Photos courtesy Norbert Merkl.