Jacob Judah Leon Ebreo, Haham in Amsterdam and member of family of European and U.S. notables whose progenitors fled the Iberian Peninsula during the Inquisition. The name derives from the kingdom of Leon, Spain. Early in the 1500s, the Marrano Pedro de Leon tried to escape the Spanish inquisitors by moving with his family to the West Indian island of Hispaniola. However, he was apprehended and in 1515 brought back to Seville for trial. Others were more fortunate and the name Leon appears in the records of Ancona, Jerusalem, Hamburg, Salonika, London, Venice, Jamaica, Surinam, Amsterdam, and the United States.

The recital of the whole Book of Psalms is widespread, whether as an act of piety by saintly individuals, or by groups of unlearned people. For this purpose "societies of reciters of Psalms" (hevrot tehillim) were and continue to be formed, and in recent times a special society has been formed in Jerusalem whereby two separate groups recite the whole Book of Psalms daily at the Western Wall. The Psalms are included in their entirety in all large prayer books.

הסכמות (בפורטוגזית): ר' יעקב פראנקו דה סילווה, אמשטרדאם, כו כסלו ת"ל; ר' יצחק אבואב ור' משה רפאל די אגילאר; ר' אברהם הנריקז די גראנאדה, ר' אהרן קאפאדושי, ר' יעקב הרגאז הנריקז, ר' יצחק דיל פראדו, ד"ר יצחק אורוביו די קאסטרו, ר' דוד אבנדאנה ור' יעקב פראנקו דה סילווה, אמשטרדאם, כז טבת ת"ל; ר' יצחק אבואב, ר' משה רפאל די אגילאר, ר' יאשיהו פארדו, ר' שלמה די אוליויירה, ר' יצחק סארוקו, ר' יוסף די פארו, ר' דוד דראגו, כז אלול ת"ל; (בספרדית:) ד"ר יצחק אורוביו די קאסטרו.