CREATE TABLE table_221375_1 (municipalities INT, province_of_1936 VARCHAR)

Name the most municipalities for alto alentejo province (partly ribatejo)
SELECT MAX(municipalities) FROM table_221375_1 WHERE province_of_1936 = "Alto Alentejo Province (partly Ribatejo)"
SELECT MAX("municipalities") FROM "table_221375_1" WHERE "Alto Alentejo Province (partly Ribatejo)" = "province_of_1936"