From the South China Morning Post this week in 1986
Sir Edward Youde, the 26th governor of Hong Kong, died in his sleep in Beijing while on a trade mission to the Chinese capital. Sir Edward was the only governor to die in office. He was 62.
The cause of death was not immediately revealed, but Sir Edward had suffered heart trouble and underwent open-heart surgery before he was appointed governor in December 1981.
His sudden death raised uncertainty over Hong Kong's political leadership and sent shockwaves through its financial markets.
The Hang Seng Index plunged 60 points, but recovered to close 30 points down before the stock market was closed as a mark of respect.
Sir Edward, a fluent Chinese speaker, personally handled major issues related to the transition of the territory to Beijing rule and his death opened up a leadership vacuum Britain would find hard to fill.