Forces charity Help For Heroes will not accept donations raised by Tommy Robinson, leader of the far-right group the English Defence League (EDL), Channel 4 News presenter Krishnan Guru-Murthy said.
It is thought that Drummer Lee Rigby was wearing a Help For Heroes t-shirt or sweatshirt when he was murdered in Woolwich last Wednesday.
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The Duke and Duchess of Cambridge met young people who have battled mental health issues on Saturday.
Former Chancellor Lord Geoffrey Howe was Margaret Thatcher's longest-serving Cabinet minister, also taking on the role of Foreign Secretary.
Lord Geoffrey Howe is known by many for his resignation speech which was seen as the catalyst which destroyed Margaret Thatcher.