1426 (MCDXXVI) ebile ngwaga wa go thoma ka Sontaga, ngwaga wa bošupa ngwagengsome wa 1420s, ngwaga wa bomasomepedi tshela ngwagengkgolo wa Ngwagakgolo 15, le ngwaga wa bomakgolo nne masomepedi tshela ngwagengkete wa Ngwagakete 2.