What is "mocatta"

Mocatta (also de Mattos Mocatta, Lumbroso de Mattos Mocatta and Lumbrozo de Mattos Mocatta) is the name of a prominent Anglo-Jewish family originally from Spain known for philanthropy, leadership and sponsorship of arts and letters, particularly in the United Kingdom. Long involved in finance, commerce, and the law, they are considered to be one of the principal families in the "cousinhood" of senior Sephardic Anglo-Jewish families, the de facto Anglo-Jewish aristocracy: these influential families of the "cousinhood" include the d'Avigdor family, Sassoon family, Goldsmid family, Henriques family, Kadoorie family, Lousada family, Mazza Family, Montefiore, Samuel family and De Leon family.