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:
List of Chief Ministers of Gazankulu
Table title:
Leaders of Gazankulu
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Tenure </th><th colspan=1 rowspan=1 > Incumbent </th><th colspan=1 rowspan=1 > Affiliation </th></tr>
<tr> <td colspan=3 rowspan=1 > Machangana </td></tr>
<tr> <td colspan=1 rowspan=1 > 1 July 1971 to 1 February 1973 </td><td colspan=1 rowspan=1 > Hudson William Edison Ntsanwisi, Chief Councillor </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=3 rowspan=1 > Gazankulu (Self-Rule) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1 February 1973 to 25 March 1993 </td><td class="highlighted"  colspan=1 rowspan=1 > Hudson William Edison Ntsanwisi, Chief Minister </td><td colspan=1 rowspan=1 > XPP </td></tr>
<tr> <td colspan=1 rowspan=1 > 25 March 1993 to April 1993 </td><td colspan=1 rowspan=1 > Edward Mhinga, acting Chief Minister </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > April 1993 to 26 April 1994 </td><td colspan=1 rowspan=1 > Samuel Dickenson Nxumalo, Chief Minister </td><td colspan=1 rowspan=1 > XPP </td></tr>
<tr> <td colspan=3 rowspan=1 > Gazankulu re-integrated into South Africa on 27 April 1994 </td></tr>
</table>
Question:
What was the first name of the incumbent chief minister during the tenure of July 1971 to February 1973.
Answer:
Hudson William Edison Ntsanwisi was the first Chief Minister of Gazankulu.