Simplify the following text for a Grade 8 native English-speaking person.
Original: is a banking group centered on Banco Santander , the largest bank in the Eurozone and one of the largest banks in the world in terms of market capitalization .
Simplified: Grupo Santander is a banking group centered on Banco Santander , the largest bank in the Eurozone . Grupo Santander is one of the largest banks in the world ( in terms of market capitalization ) .