Abraham Isaac Kook

Abraham Isaac HaCohen Kook, 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.