My father had two sons, from whom I was the oldest, and two daughters.

Sorry for the inconveinience, but I'm not English, and I've got some translation to do

Thank you for using the Jiskha Homework Help Forum. Instead of "from whom" if you make that "of whom" it's fine.

"I was the oldest"?? Are you dead?

Use this:

My father has two daughters and two sons, of whom I am the oldest.

Thanks for the help, both of you!

Btw, writeacher, it's taken out from a danish book, and it's in past tense, so it shall not be in present.. But thanks

No problem! I'm here to help you. Can you please let me know what you need help with regarding translation?