The Reliance empire was divided between the two brothers in 2005 after a bitter seven-month feud.

BBC: India's Ambani brothers sign deal on telecoms

Since the brothers patched up in May, the Reliance empire though still divided, has been a peaceful family more or less.

FORBES: Anil Ambani's Taj Mahal?

The seeds of the current dispute were sown in a family agreement of 2005, which divided the Reliance empire founded by their late father Dhirubhai Ambani, who had died three years earlier. (See " Indian Billionaire Ambani Brothers Reach Settlement").

FORBES: The Ambani brothers are at it again.

Georgia was divided between the Ottoman and Persian empires for centuries until it became part of the Russian Empire in the 19th century.

CNN: Georgia: A country in pictures