Credit: Samir Hussein/Getty Images

Now that Prince William is officially spoken for, everyone wants to know about little bro Prince Harry's wedding plans -- even elderly war vets!

Dating Chelsy Davy on-and-off for the past four years, Harry, 26, toured London's Royal Hospital Chelsea's infirmary (founded in 1682 for British war heroes) on Thursday.

While greeting vets Harry encountered 85-year-old William Titchmarsh, a member of the Gunners Regiment. "When are you getting married?" Titchsmarsh asked the Prince. Decked out in his Blues and Royals uniform, the redhead looked surprised by the bold question.

"Not for a long time," Harry replied. "Who put you up to ask me that?"

Joked Titchmarsh: "They'll shoot me in the morning!"

After that exchange -- and meeting with the hospital's oldest resident, 99-year-old Joe Britain -- Harry watched the annual Chelsea Pensioner's parade, where 300 elderly vets marched and gave military salutes.

Following the parade, he praised the marchers -- and mocked his older brother William, 28. "I find it terrifying that your drill is so much better than my brothers', but it doesn't surprise me."

Getting serious, he added: "The Army, for me and thousands like me, is a family. In that respect, for veterans coming here, it must be like coming home. That is why this place matters, and always will."