Silva suffered from senility or Alzheimer's disease in her last years. He died in 1914 after a year of suffering from gangrene, arteriosclerosis and senility. In her last years, she gradually lost her eyesight and suffered from senility. Despite suggestions of senility in later life, Princess Andrew remained lucid but physically frail. He alternates between intelligence and amoral senility due to his greatly advanced age. The cause of death is officially recorded as "Syncope, Senility". He is known for his long, rambling, often incoherent and irrelevant stories and senility. Causes related to senility led to many of the rest. Kasper reports that the death certificate said that Butler died of "senility". Halloway believes Hawk/Liebowicz' stories are fantasies generated by his advanced age and senility. In 1895, senility forced Olmsted to retire. He also considered monkey-gland transplantation an effective treatment to counter senility. Now bordering on senility, the wizard is still a force to be reckoned with. The crew often ridicule Holly on his senility, but Holly often comes out on top. I hope that you will not accuse me of senility (12&colon;94).