If you haven't heard about PGConf.DE, it is the German-speaking continuation of the very successful PostgreSQL Conference Europe held in Stuttgart last year. There are many great talks about various topics (replication, performance and optimization, development and much more). The conference let you get in touch with developers and users, exchanging experiences about PostgreSQL and creating contacts to various members of the community.
Registration is open already and the entrance fee also includes access to the OpenRheinRhur conference for the whole weekend. See you there!