Margaret Thatcher tendency to override collegiate opinion, contributed to discontent within her party. Thatcher removed Geoffrey Howe as Foreign Secretary in July 1989 after he and Lawson had forced her to agree to a plan for Britain to join the European Exchange Rate Mechanism (ERM). Britain joined the ERM in October 1990. On 1 November 1990, Howe, by then the last remaining member of Thatcher's original 1979 cabinet, resigned from his position as Deputy Prime Minister, ostensibly over her open hostility to moves towards European Monetary Union. In his resignation speech on 13 November, Howe commented on Thatcher's openly dismissive attitude to
Margaret Thatcher her office in the Lords had been closed. Earlier that month, Thatcher was named the most competent Prime Minister of the past 30 years in an Ipsos MORI poll. Baroness Thatcher died on 8 April 2013, at the age of 87, after suffering a stroke. She had been staying at a suite in the Ritz Hotel in London since December 2012 after having difficulty with stairs at her Chester Square home in Belgravia. Her death certificate listed the primary causes of death as a "cerebrovascular accident" and "repeated transient ischaemic attack"; secondary causes were listed as a "carcinoma of the