Connect-PnPOnline "https://tenant.sharepoint.com/sites/meineseite" -Interactive
$Locale = 1031 #1033 English /1031 German
$SiteUrl= "MySubsite"
$Template = "SITEPAGEPUBLISHING#0" #Communication Site
New-PnPWeb -Title $SiteUrl -Url $SiteURL -Locale $Locale -Template $Template