<prompt> Translate the following text to EnglishKutoka kwenye Calle de los Mercaderes hadi Plaza Vieja Plaza la Kale ni moja ya vituo vya biashara vya zamani zaidi katika historia ya Uholanzi.  <response>: Follow charming Calle Mercaderes to the fascinating and aptly named Plaza Vieja Old Square, which began life in 1584 housing wealthy merchants. 