Write to Prince William and Kate Middleton
Write one joint letter to Prince William and Catherine, Princess of Wales, preview the exact PDF, and have PostalForm mail it to Kensington Palace. The destination is published by the Royal Family for correspondence to The Prince and Princess of Wales.
Edit and preview your message, then have PostalForm print and mail it to the Kensington Palace address published for The Prince and Princess of Wales.
Need more context?
PostalForm provides the form instructions, mailing notes, document checklist, and source links below. Review these details before completing the guided fields, particularly when the recipient requires a signature, enclosure, or specific submission method. Preview the completed PDF and confirm the destination and price before paying.
Which mailing option and proof should you choose?
PostalForm offers U.S. letter mailing with different delivery and proof options. First-Class suits routine correspondence; Certified Mail adds mailing and delivery records, and Electronic Return Receipt adds a downloadable signature record. Expedited delivery prioritizes speed. Review the destination, estimated dates, total price, and required proof before paying.
| Mailing option | Delivery speed | Proof | Use when | Avoid when |
|---|---|---|---|---|
| USPS First-Class Mail | First-Class Mail delivery estimate shown before payment. | Available processing scans; no recipient signature or Certified Mail receipt. | Routine letters when a signed delivery record is unnecessary. | Your instructions require Certified Mail, a signature, or a deadline this estimate cannot meet. |
| Certified Mail | First-Class delivery speed; certification does not make delivery faster. | USPS mailing and delivery/attempt tracking; no Electronic Return Receipt unless added. | You need a recorded mailing and delivery or attempted-delivery status. | You need a downloadable signature record or faster delivery. |
| Certified Mail + Electronic Return Receipt | First-Class delivery speed; signature collection may require redelivery or pickup. | Certified Mail records plus a downloadable USPS signature record when available. | Your instructions call for Certified Mail with Return Receipt or you need the signature record. | Your recipient requires an original enclosure, personal service, or another submission method. |
| Expedited / Express with signature | Faster estimated delivery range shown at checkout; production cutoff and destination apply. | Carrier tracking and signature option; this is separate from Certified Mail and ERR. | Speed and signature matter and checkout offers the service for your destination. | A rule specifically requires Certified Mail or the displayed estimate misses your deadline. |
Availability and delivery estimates depend on the document and destination. Mailing proof does not establish that a recipient accepted a filing or that legal service requirements were met. Delivery estimates · Full pricing
Important details+
PostalForm is not affiliated with the Royal Family. Do not send gifts, cash, valuables, threats, or sensitive original documents.
What you need+
- One respectful joint message
- Your sender name and return address
- No gifts, cash, valuables, threats, or sensitive originals
Form summary+
Write one joint letter to Prince William and Catherine, Princess of Wales, preview the exact PDF, and have PostalForm mail it to Kensington Palace. The destination is published by the Royal Family for correspondence to The Prince and Princess of Wales.
This page deliberately combines both recipients. Use it for appreciation, a charitable or community story, or a meaningful occasion. The editable example addresses them together and avoids claims that either recipient will personally see or answer the message.
PostalForm is independent of the Royal Household. Mail may be screened, routed, or handled by staff, and carrier delivery does not prove personal receipt.
How it works+
- Personalize the joint starter letter.
- Preview the exact PDF.
- Enter sender details while the Kensington Palace destination stays fixed.
- Pay for international printing and mailing.
Where it gets mailed+
We prefill the recipient for you.
Packet order+
- Cover sheet (auto-generated)
- Completed form PDF
Common mistakes+
- Creating separate duplicate letters when one joint message is intended.
- Using the route to seek intervention in a dispute.
- Assuming tracking proves either recipient read the letter.
FAQs+
What address does this page use?
It uses The Prince and Princess of Wales, Kensington Palace, London W8 4PX, United Kingdom, as published by the Royal Family.
Is this also the page for writing to Kate Middleton?
Yes. Catherine, Princess of Wales is widely searched as Kate Middleton; this joint workflow uses the Royal Family's current recipient style.
Can I address the letter to only one of them?
The fixed envelope recipient is The Prince and Princess of Wales, but you may make the editable letter body specifically about one recipient.
Will they personally read or answer it?
There is no guarantee. Royal Household staff determine how correspondence is handled.
Is PostalForm connected to Kensington Palace?
No. PostalForm is an independent printing and mailing service.
Sources+
Related+
Last verified+
Last The Royal Household verification: August 9, 2026