Abraham Isaac Kook
Abraham Isaac HaCohen Kook (Hebrew: אַבְרָהָם יִצְחָק הַכֹּהֵן קוּק; 7 September 1865 – 1 September 1935), known as HaRav Kook, and also known by the Hebrew-language acronym Hara'ayah (הראי״ה), was an Orthodox rabbi, and the first Ashkenazi Chief Rabbi of British Mandatory Palestine. He is considered to be one of the fathers of religious Zionism and is known for founding the Mercaz HaRav Yeshiva.