Mayor de Blasio posed at Hamburg’s parliament with leaders from the German city Thursday — and his son, Dante.

The “Hamburgische Bürgerschaft” tweeted a photo of “Bürgermeister Bill de Blasio” with the president of Hamburg’s Parliament, Carola Alexandra Veit, Friday summit.

It was the mayor’s first public appearance after heading to the city with little notice Thursday afternoon to attend a protest at the G-20 summit.

Dante is spending the summer on an internship in Berlin.