I'm taking a chance, but the birthdate at this tiny notice IS a match...it's strange there are no real obits!

https://www.dignitymemorial.com/obituaries/new-york-ny/franz-brandenberg-10777877

https://www.goodreads.com/author/show/239232.Franz_Brandenberg
(reader reviews)

https://www.kirkusreviews.com/search/books/?q=franz%20brandenberg&sf=t
(six Kirkus reviews)

https://www.google.com/search?q=%22franz+brandenberg%22&rlz=1CAJMBU_enUS1039&source=lnms&tbm=vid&sa=X&ved=2ahUKEwjt9Zzq3Kv8AhUqqXIEHYGqDeoQ_AUoAHoECAEQCg&biw=911&bih=433&dpr=1.5
(a few video read-alouds)

https://www.youtube.com/results?search_query=franz+aliki
(Franz, Aliki, and daughter Alexa read aloud "I Wish I was Sick, Too!" - possibly in 2018 - plus two more read-alouds)

What I posted on his 80th birthday:

Born in Zug, Switzerland, he lived in London and collaborated with his
wife, illustrator Aliki.

His books have been translated into Japanese, Chinese, Hebrew, French,
German, Dutch, Danish, Swedish, and Catalan.

http://images.google.com/images?svnum=10&hl=en&q=%22franz+brandenberg%22
(book covers)

WRITINGS BY THE AUTHOR:
ILLUSTRATED BY WIFE, ALIKI

I Once Knew a Man, Macmillan, 1970.
Fresh Cider and Pie, Macmillan, 1973.
No School Today!, Macmillan, 1975.
A Secret for Grandmother's Birthday, Greenwillow, 1975.
A Robber! A Robber!, Greenwillow, 1976.
I Wish I Was Sick, Too!, Greenwillow, 1976 (published in England as I
Don't Feel Well, Hamish Hamilton, 1977).
What Can You Make of It?, Greenwillow, 1977.
Nice New Neighbors (Junior Literary Guild selection), Greenwillow,
1977.
A Picnic, Hurrah!, Greenwillow, 1978.
Six New Students, Greenwillow, 1978.
Everyone Ready? (Junior Literary Guild selection), Greenwillow, 1979.

It's Not My Fault! (Junior Literary Guild selection), Greenwillow,
1980.
Leo and Emily, Greenwillow, 1981.
Leo and Emily's Big Ideas, Greenwillow, 1982.
Aunt Nina and Her Nephews and Nieces, Greenwillow, 1983.
Aunt Nina's Visit, Greenwillow, 1984.
Leo and Emily and the Dragon, Greenwillow, 1984.
The Hit of the Party, Greenwillow, 1985.
Cock-A-Doodle-Doo, Greenwillow, 1986.
What's Wrong with a Van?, Greenwillow, 1987.
Aunt Nina Good Night!, Greenwillow, 1989.

OTHER

Otto Is Different, illustrated by James Stevenson, Greenwillow, 1985.

Leo and Emily's Zoo, illustrated by Yossi Abolafia, Greenwillow, 1988.

(Pictures by Alexa Brandenberg) A Fun Weekend, Greenwillow Books (New
York), 1991.

(Edited by Michael J. Rosen Home)(Illustrated by Aliki Brandenberg) A Collaboration Of Thirty Distinguished Authors and Illustrators of
Children's Books to Aid the Homeless HarperCollins (New York, NY),
1992.

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