Which King sent personal condolences to Bert & Harriet ?

King George V, 1865-1936
The grandson of Queen Victoria—and grandfather to Queen Elizabeth—George V was born third in the line of succession and did not expect to become king. That changed after his elder brother Prince Albert Victor died in 1892. George was also sometimes known as ‘Dirty Bertie’ !!

You may recall, Bert had performed for the Royal family 9 years earlier in 1909 in London.

Meanwhile back in the USA