Was Cristobal Colon a Jew?

There are many  opinions about this, but today I want to highlight one piece of order summarized in his Testament, saying:

“A un judí­o que moraba á la puerta de la juderí­a en Lisboa, ó á quien mandare un Sacerdote, el valor de medio marco de plata”

“For a Jew who was living in the Jewish Quarter Gate of Lisbon, or to whom the priest consider, the value of hald a silver marco”