Each provincial council or "Waad" (Hebrew "vaad": committee) eventually joined with others to form a central governing body which began to meet regularly. Its name became "ultimately fixed as the Council of the Four Lands ("Waad Arba Aratzoth")." These four lands were: "Wielkopolska" (Posen), "Malopolska" (Cracow and Lubin), "Ruthenia" (Lvov (Lemberg)), and "Volhynia" (Ostrog and Kremenetz); the fifth land "Lithuania" (Brest and Grodno) withdrew to form its own high "Waad". The 'Council of the Four Lands' consisted of the six "leading rabbis of Poland" and a delegate from the principal "Kahalem" selected by their elders, in all about thirty members. "As a rule, the Council assembled in Lublin in early spring, between Purim and Passover, and in Yaroslav (Galicia) at the end of summer, before high holidays."