Hugh Richard Louis Grosvenor has inherited €10.4bn from his father
A British man has been described as now owning "half of London", after inheriting his father's stg£9bn (€10.4bn) estate at the age of just 25.
Hugh Richard Louis Grosvenor, previously known by his honorary title Earl Grosvenor, also inherits Eaton Hall in Cheshire - his family home since the 15th century.
One of four siblings, he is the only son of the late Northern Ireland-born Duke of Westminster Gerald Grosvenor - who died at the age of 64 on Tuesday - and his wife Natalia.
He was the youngest chosen by Prince William and Kate Middleton in 2013 to be a godfather to Prince George.
A former student of countryside management at Newcastle University, he has largely kept out of the spotlight - but is known to have thrown a lavish 21st birthday party for 800 guests at Eaton Hall which was reported to have cost stg£5m (€5.8m).
Comedian Michael McIntyre and hip hop duo Rizzle Kicks provided the entertainment, and Prince Harry was among the guests for the "black tie and neon" event.
Vanity Fair described him as "baby-faced" and "absurdly rich", while the Tatler List said that after inheriting his father's estate he would "own half of London".
He works as an account manager for bio-bean, a green technology company which recycles coffee grounds into advanced biofuels and biochemicals.
He was educated at a state primary school, before going to a private day school close to his home in Cheshire.
Hugh's mother Natalia, the Duchess of Westminster, is one of Prince William's godparents.
His sister, Lady Tamara, is married to Edward van Cutsem - whose brother William van Cutsem is also a godparent to Prince George.
As part of his new role, he is expected to take responsibility for the Westminster Foundation, a charitable body which manages the philanthropic activities of the Grosvenor family.
Formed in the 1970s, it has awarded more than stg£40m (€46.6m) in grants. Hugh's father was said to be the 68th richest person in the world.
He owned land in Belgravia, an area adjacent to Buckingham Palace and one of London's most expensive boroughs, as well as thousands of acres in Scotland and Spain.
He had inherited his title and became chairman of Grosvenor Holdings - the commercial arm of the estate - at the age of 27 when his father Robert died in 1979.