The wreck of a ship which sank more than 200 years ago has been granted special protection by the government.

The Earl of Abergavenny sank off the coast of Weymouth, Dorset, with the loss of some 250 lives, in what is considered one of the UK’s worst maritime disasters.

It was carrying more than 60 chests of silver bullion that have never been found.

John Wordsworth, the brother of renowned Romantic poet William Wordsworth, was the ship’s captain.

The 1,300-tonne ship set sail from Portsmouth to Bengal and China in 1805 but during a storm it struck a sandbank and floundered about a mile off the shores of Weymouth.

On the recommendation of Historic England, the government gave the wreck special protected status on Wednesday.

This means the site, which includes planking, frames, fixtures and fittings, can be dived on but should remain untouched.

David Carter from the Portland Museum in Dorset was among those who discovered the wreck and welcomed its new protected status.

He described the Earl of Abergavenny as the “finest and largest” of the East India Company ships.

The East India Company had a close association with the Wordsworth family, and it is believed that John Wordsworth embarked on a life at sea to help support his brother’s writing career.

Duncan Wilson, chief executive of Historic England, told PA news agency:

“This wreck has an evocative story to tell about the life and sorrow of one of our most renowned poets, William Wordsworth.”

References to John can be found in some of his brother’s works, such as in The Character of the Happy Warrior, Stepping Westward and Elegiac Stanzas.

John captained two successful voyages on the Earl of Abergavenny to China before the tragic incident which took his life and that of around 250 crewmen and passengers.

The ship’s cargo was estimated to be worth £70,000 at the time – approximately £7.5 million today.

Many of the artefacts from the wreck are housed at the Portland Museum.