Christoph Luitpold Frommel celebrates his 90th birthday on September 25, 2023. Both in its subject and in its methodology, his research on Renaissance architecture revolutionized the scholarly field. Frommel was born in Heidelberg and spent many formative years at the Bibliotheca Hertziana – Max Planck Institute for Art History; first as a fellow, then as assistant, and finally as its director.
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