Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
1956 Taunton by-election
Table title:

Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > ± </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Conservative </td><td class="highlighted"  colspan=1 rowspan=1 > Edward du Cann </td><td colspan=1 rowspan=1 > 19,820 </td><td colspan=1 rowspan=1 > 50.84 </td><td colspan=1 rowspan=1 > 1.27 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Labour </td><td colspan=1 rowspan=1 > Reginald Alfred Pestell </td><td colspan=1 rowspan=1 > 19,163 </td><td colspan=1 rowspan=1 > 49.16 </td><td colspan=1 rowspan=1 > +9.63 </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td class="highlighted"  colspan=1 rowspan=1 > 657 </td><td colspan=1 rowspan=1 > 1.68 </td><td colspan=1 rowspan=1 > 10.9 </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 38,983 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > Conservative hold </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Who won the 1956 Taunton by-election, what party did he represent, and what was the majority margin of victory?
Answer:
In the 1956 Taunton by-election, the seat was won by the Conservative candidate Edward du Cann with a majority of 657 votes.