| Bertram Brooke | |
| Birth Date: | 8 August 1876 |
| Issue: |
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| Full Name: | Bertram Willes Dayrell |
| House-Type: | Family |
| Mother: | Margaret, Ranee of Sarawak |
Bertram Willes Dayrell Brooke, Tuan Muda of Sarawak (8 August 1876 – 15 September 1965), was the last heir apparent to the Raj of Sarawak.
Bertram Brooke was the son of Charles Brooke, the second of White Rajah of the Raj of Sarawak, and a brother of Charles Vyner Brooke, the third and last White Rajah. For some years he was heir presumptive to his brother, a claim he relinquished in favour of his son. He held the title of "Tuan Muda" (literally "Young Lord") and the style of "His Highness".
Brooke was educated at Winchester College and at Trinity College, Cambridge. He was president of Cambridge University Boat Club and rowed in The Boat Race in 1900 and 1901, and he was a member of the Pitt Club.[1] He went on to serve in the Royal Horse Artillery during the First World War and act as Special Commissioner from Sarawak to the UK.
Brooke married Gladys Milton Palmer on 28 June 1904. She was the only child of Sir Walter Palmer, 1st Baronet. As wife of the Tuan Muda, Gladys took the title of "Dayang Muda" and the style of "Her Highness". The couple had one son, Anthony, titular Rajah Muda of Sarawak, and three daughters.