Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22368322_2 (_€_million VARCHAR, tier_1_capital INTEGER, institution VARCHAR)

### Question ###
Name the most tier 1 capital for irish nationwide

### Accurate SQL ###

SELECT MAX(tier_1_capital), _€_million FROM table_22368322_2 WHERE institution = "Irish Nationwide"