en.wikipedia.org/wiki/Avignon

The official Grand Avignon documentation says the Communauté d’agglomération du Grand Avignon regroups 16 communes (9 in Vaucluse and 7 in Gard), not 15. Because the article is describing the current composition of the intercommunal body, the number here is incorrect.

Avignon's official municipal page distinguishes between official twin towns and friendship agreements. On that page, New-Haven (États-Unis) appears under "Les conventions d'amitiés" with the date 1979. It is therefore incorrect to list New Haven here as a twin town, and the date 1993 is also inconsistent with the city's official record.

According to Avignon's official "Jumelages" page, Guanajuato (Mexique) is listed among the city's friendship agreements rather than its official twin towns. The same page gives the date as 1991, not 1990. So both the relationship type and the year in this entry are incorrect.

The City of Avignon's official twinning page lists Sienne (Italie) among Avignon's 7 official twin towns and gives the date as novembre 1961. That directly contradicts the article's statement that Siena has been twinned with Avignon since 1981.

The official Avignon municipal page lists Diourbel (Sénégal) among the city's official twin towns and gives the date as avril 1962. That conflicts with the article's claim that the twinning dates from 1961.

Avignon's official municipal twinning page lists Tarragone (Espagne) as one of the city's official twin towns and gives the date as octobre 1969. That directly contradicts the article's statement that Tarragona has been twinned with Avignon since 1968.