Grotrian

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Grotrian is a family name for the following people:

Friedrich Grotrian (1803-1860), German instrument maker
Theodor Christoph Grotrian (1755–1829), general superintendent and publisher in Holzminden
Walter Grotrian (1890–1954), German astronomer and astrophysicist
Willi Grotrian-Steinweg (1868–1931), German piano manufacturer

Grotrian stands for the following companies:

Grotrian-Steinweg , German piano manufacturer

See also:

Grotian