Nairobi, July 27 -- For generations, wealthy families have encouraged their children to marry within similar socio-economic circles, partly to preserve their fortunes.

"People naturally meet partners with same experiences and hobbies," says Moses Mathini, Head of Private Wealth and Legal at Liaison Group.

"These hobbies tend to financially exclude those who cannot afford them regularly, reducing the likelihood of people from different economic backgrounds socialising."

However, as someone once sang, the heart is not so smart. People from rich families may marry down. This has prompted wealth managers to create structures that ensure the wealth built up over years isn't sacrificed on the altar of romance and matrimonial property.

"Key ...