What child of Queens Victoria had mental problems?

I can't say that any of her children had mental problems, but her youngest son Leopold, considered the Queen's most intelligent sons, had hemophilia, her daughter, Princess Alice was a carrier of the genetic illness and passed it on to her daughtert the Princess Alix of Hesse and By Rhine and her son, Princes Friedrich, had hemophilia. Her daughter Princess Irene also had son's who had the disease and one daughter, May, died when she was 4, nothing was known about possiblity being a carrier. the Princess Alice had some of the struggles with depression, probably mucyh as the same of her father, Prince Albert.