Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Election | First member | First party | Second member | Second party |
| --- | --- | --- | --- | --- |
| 1832 | Hon. George Venables-Vernon | Whig | The Lord Waterpark | Whig |
| 1835 | Sir George Harpur Crewe, Bt | Tory | Sir Roger Gresley, Bt | Tory |
| 1837 | Sir George Harpur Crewe, Bt | Tory | Francis Hurt | Tory |
| 1841 | Edward Miller Mundy | Conservative | Charles Robert Colvile | Peelite |
| 1849 by-election | William Mundy | Conservative | Charles Robert Colvile | Peelite |
| 1857 | William Evans | Liberal | Charles Robert Colvile | Peelite |
| 1859 | William Evans | Liberal | William Mundy | Conservative |
| 1865 | William Evans | Liberal | Charles Robert Colvile | Liberal |
| 1868 | Rowland Smith | Conservative | Sir Thomas Gresley, Bt | Conservative |
| 1869 by-election | Rowland Smith | Conservative | Sir Henry Wilmot, Bt | Conservative |
| 1874 | William Evans | Liberal | Sir Henry Wilmot, Bt | Conservative |
| 1885 | radical boundary changes, reduced to one member | radical boundary changes, reduced to one member | radical boundary changes, reduced to one member | radical boundary changes, reduced to one member |
Question:
Which election has second member Charles Robert Colvile, a conservative first party, and first member William Mundy?
Answer:
1849 by-election