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:
Apothecaries' system
Table title:
Romance countries
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > 1 pound </th><th colspan=1 rowspan=1 > 1 ounce </th><th colspan=1 rowspan=1 > state or city </th></tr>
<tr> <td colspan=1 rowspan=1 > 301.2 g </td><td colspan=1 rowspan=1 > 25.1 g </td><td colspan=1 rowspan=1 > Venice </td></tr>
<tr> <td colspan=1 rowspan=1 > 320.8 g </td><td colspan=1 rowspan=1 > 26.7 g </td><td colspan=1 rowspan=1 > Kingdom of the Two Sicilies (1816–1861) </td></tr>
<tr> <td colspan=1 rowspan=1 > 325.7 g </td><td colspan=1 rowspan=1 > 27.1 g </td><td colspan=1 rowspan=1 > Bologna </td></tr>
<tr> <td colspan=1 rowspan=1 > 326.8 g </td><td colspan=1 rowspan=1 > 27.2 g </td><td colspan=1 rowspan=1 > Milan (–1815) </td></tr>
<tr> <td colspan=1 rowspan=1 > 328.0 g </td><td colspan=1 rowspan=1 > 27.3 g </td><td colspan=1 rowspan=1 > Parma </td></tr>
<tr> <td colspan=1 rowspan=1 > 332.0 g </td><td colspan=1 rowspan=1 > 27.7 g </td><td colspan=1 rowspan=1 > Sardinia </td></tr>
<tr> <td colspan=1 rowspan=1 > 334.5 g </td><td colspan=1 rowspan=1 > 27.9 g </td><td colspan=1 rowspan=1 > Duchy of Lucca (1815–1847) </td></tr>
<tr> <td colspan=1 rowspan=1 > 339.2 g </td><td colspan=1 rowspan=1 > 28.3 g </td><td colspan=1 rowspan=1 > Rome </td></tr>
<tr> <td colspan=1 rowspan=1 > 339.5 g </td><td colspan=1 rowspan=1 > 28.3 g </td><td colspan=1 rowspan=1 > Florence </td></tr>
<tr> <td colspan=1 rowspan=1 > 339.5 g </td><td colspan=1 rowspan=1 > 28.3 g </td><td colspan=1 rowspan=1 > Grand Duchy of Tuscany (–1859) </td></tr>
<tr> <td colspan=1 rowspan=1 > 340.5 g </td><td colspan=1 rowspan=1 > 28.4 g </td><td colspan=1 rowspan=1 > Duchy of Modena (1814–1859) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 344.2 g </td><td colspan=1 rowspan=1 > 28.7 g </td><td class="highlighted"  colspan=1 rowspan=1 > Kingdom of Portugal </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 344.8 g 345.1 g </td><td colspan=1 rowspan=1 > 28.7 g 28.8 g </td><td class="highlighted"  colspan=1 rowspan=1 > Kingdom of Spain </td></tr>
</table>
Question:
In which two states were pounds measured the heaviest?
Answer:
The weight of an apothecaries' pound was 345.1 g in Spain and 344.2 g in Portugal.