When were chamber music concerts first established in London?

Chamber music concerts were first established in London in 1672. These early public performances were initiated by the violinist John Banister, who hosted them at his home in Whitefriars.12

These concerts were considered exceptional for their time, as they predated the emergence of regularly established professional chamber music groups, which did not appear until approximately 1810. Following Banister's initiative, other series were established in London, such as the weekly concerts organized by Thomas Britton in a Clerkenwell loft beginning in 1678.12