The relationship between Illingen and Bük:
Bük and the German Illingen first got in touch in 1999, which was followed by further meetings and correlations in 2000. In May 2001 the agreement about the partnership of being sister cities was signed according to the initiative of the two parties.

This partnership agreement between the two sister cities was made with the aim of supporting and promoting their citizens' cultural, tourism-, sports-, social and economical cooperation.
Illingen is situated in Saarland Germany near Saarbrücken. It has 6000 inhabitants and is based on the service industry, but it is also rich in sights.

The Relations of Törökbálint and Bük:
According to our knowledge, Törökbálint, which is one of the most popular settlements of the Buda hills, has been inhabited since the time of the early migration of nations. Its centre used to be somewhere between today's village and Torbágy (the German name of the settlement derives from it as well: Grossturwall = Nagytorbágy, and it can be also read on the place name signs at the entrances of the settlement).