These Animals Are the Richest Pets in History

6. Gigoo isn’t your everyday hen

Publishing tycoon Miles Blackwell died in 2002. His wife had passed away three weeks earlier, and the couple had no children. A year before their deaths, the Blackwells sold the interests in their family business and moved to the country to raise sheep and rare chickens, the Scots Dumpy. But out of his chickens, one stood out — Miles’ favorite, a hen named Gigoo. To ensure her care after he passed, Miles left her $11 million. He also set up millions in a charitable trust to benefit animal welfare groups.