Bürgermeister

mayor (leader of a city, male or unspecified sex)

sowie

1. as well as
2. as soon as

Mitglied

member

des

genitive masculine/neuter singular of der: the

Kreistages

genitive singular of Kreistag

von

1. from
2. of, belonging to (often replacing genitive; see usage note below)
3. by (with passive voice)
4. about, of (a topic)
5. on, with (a resource)