\usepackage[utf8]{inputenc} % Required for inputting international characters
\usepackage[T1]{fontenc} % Output font encoding for international characters
\usepackage{graphicx} % Required for figures
\usepackage{url} % URLs
\usetheme[whale]{Madrid}
\usepackage[spanish]{babel}
\author{Nombre del Usuario}
\institute{Subtitulo del Autor} % Opcional
\date{\today}