Pommery and Greno
/ˌpɒm(ə)ri (ə)n(d) ɡrɪˈnəʊ/noun
Champagne produced by the firm of Pommery & Greno; = Pommery (now the more usual designation).
Origin
Late 19th century; earliest use found in The Times. From the name of Pommery & Greno, the firm which produced the champagne from the name of Narcisse Greno, who took over the firm in Rheims in 1836 + the name of Louis Alexandre Pommery, who went into partnership with Greno in 1856.