CASTELLO, ABRAHAM ISAAC (1726–1789), rabbi and Hebrew poet. Castello, who was born at Ancona, worked for some time at the Leghorn coral industry before becoming a cantor, and subsequently was rabbi and preacher in Leghorn. Several of his occasional poems were published in A.B. Piperno's collection Kol Ugav (Leghorn, 1846), and in the following collections: Shema Shelomo (on the occasion of Solomon Michell's wedding, Leghorn, 1788); Kol Millin (ibid., 1765); and Minḥah Ḥadashah (1785). Another work by him on the occasion of a marriage was published by A. Toaff (1904), and his work on the occasion of the consecration, in 1789, of the restored Leghorn synagogue, was published in Kol Rinnah (1790). Excerpts from his unpublished halakhic work Si'aḥ Avraham were incorporated in the prayerbook Tefillah Zakkah (Leghorn, 1789).
Steinschneider, in: MGWJ, 43 (1899), 568–9; A. Lattes and A. Toaff, Studi ebraici a Livorno nel secolo XVIII (1909), 16–18; Davidson, Oẓar, index; Schirmann, in: Zion, 29 (1964), 99.