I have dataframe with following columns:

```
Name, Surname, dateOfBirth, city, country

```

I am interested to find what is most common combination of name and surname and how much it occurs as well.
Would be nice also to see list of top 10 combinations.

My idea for top one was:

```
mostFreqComb= df.groupby(['Name','Surname'])['Name'].count().argmax()

```

But I think it is not giving me correct answer.
Help would be much appreciated !

Thanks, 
Neb