It's spelled Singen . . .
in reply to a message by Robyn
And it stands for St John. It's my father's middle name, and he can use either St John or Singen.
Replies
How do you get St. John from Singen? Singen doesn't stand for St. John; it's a phonetic rendering of a peculiar British pronunciation of St. John. Once you've locked in this pronunciation by using this spelling, you can't then say it has an alternative pronunciation of St. John!