Anthony van Dyck was a commercially successful painter in Antwerp and Italy, but he may have had the most influence in England when he served as court painter to King Charles I.
Research:

Blake, Robin. “Anthony Van Dyck.”  Ivan R. Dee. 2009.
“Anthony Van Dyck.” The Art Story. https://www.theartstory.org/artist/van-dyck-anthony/
Maddicott, Hilary. “‘Qualis vita, finis ita’: The life and death of Margaret Lemon, mistress of Van Dyck.” The Burlington Magazine. February 2018. https://www.burlington.org.uk/media/_file/generic/article-42279.pdf?fbclid=IwAR2dE5AscipktnTy4QDCc0CN_cYOlVYCPkNerrHsR0oi0V4zCUdiOpEz2to
Solly, Meilan. “Digital Art Detectives Identify Original van Dyck Portrait.” Smithsonian. Oct. 10, 2019. https://www.smithsonianmag.com/smart-news/digital-art-detectives-identify-original-van-dyck-portrait-spanish-royal-180973308/
Liedtke, Walter. “Peter Paul Rubens (1577–1640) and Anthony van Dyck (1599–1641): Paintings.” The Met. October 2003. https://www.metmuseum.org/toah/hd/rvd_p/hd_rvd_p.htm
Vance, Heidi. “15 Facts About Anthony van Dyck: A Man Who Knew Many Faces.” The Collector. Aug. 16, 2020. https://www.thecollector.com/anthony-van-dyck-painter/
“In focus: Sir Anthony van Dyck.” National Portrait Gallery. https://www.npg.org.uk/assets/files/pdf/learning/NPG_VanDyck_14.pdf
“The Iconographie and Other Early Portrait Prints after Van Dyck.” The Frick Collection.
https://www.frick.org/exhibitions/van_dyck/iconographie
White, Christopher. “Anthony van Dyck and the Art of Portraiture.” Modern Art Press. 2021.
Wood, Jeremy. “Dyck, Sir Anthony [formerlyAntoon] Van.” Oxford Dictionary of National Biography. Sept. 23, 2004. https://doi.org/10.1093/ref:odnb/28081
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