CREATE TABLE table_69583 ("Birth" CLOB, "Marriage" CLOB, "Became Consort" CLOB, "Ceased to be Consort" CLOB, "Death" CLOB, "Spouse" CLOB)

Name the became consort for marriage of 4 april 1721
SELECT "Became Consort" FROM table_69583 WHERE "Marriage" = '4 april 1721'
SELECT "Became Consort" FROM "table_69583" WHERE "Marriage" = '4 april 1721'