The Duke of Edinburgh, 96, is still recovering from hip replacement surgery.
"He wanted something close to home for the Duke of Edinburgh and the Queen," royal expert Katie Nicholl told ET back in November.
"In fact, one of the reasons that Prince Harry has wanted this wedding to happen quite quickly—this is really whirlwind by royal standards—is because his 96-year-old grandfather, the Duke of Edinburgh, is retired now and Prince Harry really wants him to be at his wedding."
Despite all that, the Duke of Edinburgh might not be able to make it after all.
Late last week, a spokesperson for Kensington Palace shared that Prince Philip, who is still recovering from a hip replacement surgery in April, might not be at the royal wedding.
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When asked about whether or not Philip would be in attendance, a spokesperson for the royal family reportedly said, "We very much hope so," adding that there would be more information "closer to the time."
Fingers crossed the Duke of Edinburgh feels well enough to attend Harry’s big day!