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_24865763_2 (rnd INTEGER, gt2_winning_team VARCHAR)

### Question ###
What was the maximum round where Marc Lieb Richard Lietz was on the GT2 Winning Team?

### Accurate SQL ###

SELECT MAX(rnd) FROM table_24865763_2 WHERE gt2_winning_team = "Marc Lieb Richard Lietz"