How old was henry john temple, 3rd viscount palmerston when George Hamilton-Gordon, 4th earl of aberdeen was born?

What was the age (length of time since creation) of Henry John Temple, 3rd Viscount Palmerston, KG, GCB, PC (20 October 1784-18 October 1865), the British statesman who served twice as Prime Minister of the United Kingdom in the mid-19th century at the time George Hamilton-Gordon, 4th Earl of Aberdeen KG, KT, FRS, PC, styled Lord Haddo from 1791 to 1801, the Scottish politician, successively a Tory, Conservative and Peelite, who served as Prime Minister of the United Kingdom from 1852 until 1855 is born on (has as his or her date of birth)?

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I followed this chain of reasoning:

I know from locally stored knowledge that:
January 28th 1784 is the birthdate of George Hamilton-Gordon ([fact: ["18350405@trueknowledge.com"]])

October 20th 1784 is the birthdate of Henry Temple ([fact: ["18656847@trueknowledge.com"]])

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: -8 months and 22 days old is the age of Henry Temple

Fact 1 is true at January 28th 1784

By calculation (generator: ["applies_at_timepoint@trueknowledge.com"]) I know that:
Fact 1 is true at January 1784

By calculation (generator: ["human_age@trueknowledge.com"]) I know that:
Fact 1: -8 months and 22 days old is a age

Fact 1: -8 months and 22 days old applies to Henry Temple

Fact 1 is true at January 28th 1784

By calculation (generator: ["ismoreaccurate1@trueknowledge.com"]) I know that:
January 28th 1784 is a more accurate version of January 1784

I used the following facts to provide this answer:

January 28th 1784 is the birthdate of George Hamilton-Gordon

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October 20th 1784 is the birthdate of Henry Temple

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