an Entity references as follows:
Abraham bar Ḥiyya ha-Nasi (Hebrew: ר׳ אַבְרָהָם בַּר חִיָּיא הַנָשִׂיא; c. 1070 – 1136 or 1145), also known as Abraham Savasorda, Abraham Albargeloni, and Abraham Judaeus, was a Catalan Jewish mathematician, astronomer and philosopher who resided in Barcelona.