A keen sporting fan like her parents, Charlotte is known to be a huge fan of the Lionesses.
Discussing the look on Charlotte’s face, one fan pointed out her “poker face” as she stood alongside her dad in the crowd.
The fan took to X to write: “I can say Charlotte and William have no poker faces.”
Another fan wrote: “Charlotte facial expressions are everything!”
Both William and his daughter could be seen covering their faces as England scored their first goal of the night.
The princess, who is William’s second child with Princess Kate, wore a polka-dot navy dress, while he opted for a dapper suit.
Ahead of the game, William was also seen beaming in the crowd, and shook hands with fellow fans just before kick-off.