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:
1979–80 KNVB Cup
Table title:
Final
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 >  </th><th colspan=1 rowspan=1 >  </th><th colspan=1 rowspan=1 >  </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Feyenoord </td><td class="highlighted"  colspan=1 rowspan=1 > 3–1 </td><td class="highlighted"  colspan=1 rowspan=1 > Ajax </td></tr>
<tr> <td colspan=1 rowspan=1 > 1–1: Pétursson (p) 2–1: De Leeuw 3–1: Pétursson </td><td class="highlighted"  colspan=1 rowspan=1 > May 17, 1980 Stadion Feijenoord </td><td colspan=1 rowspan=1 > 0–1: Arnesen </td></tr>
</table>
Question:
When did the final of the 1979–80 KNVB Cup take place, and who won?
Answer:
The final was played on May 17, 1980: Feyenoord beat Ajax by 3–1 and won the 1979–80 KNVB Cup.