How well do you know Martin and Kathrin?

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Across
  1. 5. Highest mountain Kathrin has been to
  2. 6. Where did Martin propose?
  3. 7. Where they met for the first time
  4. 9. Kathrin's favourite detective when as a child
  5. 12. favourite computer programme during their far distance time
  6. 13. Town where Kathrin visited Kindergarten
  7. 14. Martins preferred style of music
Down
  1. 1. City where Martin studied
  2. 2. Place where they met the second time
  3. 3. Kathrin plays this instrument
  4. 4. Martin's first name
  5. 8. During the ascension weekend they like to go...
  6. 10. Subject Kathrin studied
  7. 11. Town where Martin has a summer house