Brother to the fourth earl of Harewood, Lascelles ‘always identified with rural pursuits, lived for the most part in Yorkshire, and entered on the career of an English country gentleman’, which was only briefly interrupted by his uneventful service as Conservative MP for Northallerton.
In that same year, Lascelles made his first attempt to enter Parliament on the family interest at Northallerton, where several family members, including his father, grandfather and uncle, had served as MP prior to 1832. His recollection that he had appeared ‘almost a stranger’ suggests that he had little personal acquaintance with the borough, and he lost out to the incumbent Liberal MP, William Battie Wrightson (backed by the rival Peirse interest), by just three votes.
Victorious at this by-election, Lascelles was present at Westminster less than a week later, loyally following Disraeli into the division lobby on the Irish land bill and the customs and inland revenue bill, 17 May 1866, as he did more or less consistently throughout his brief stint in the Commons. Judging from the division lists, he was not a particularly assiduous attender, arriving late and leaving early in both the 1867 and 1868 sessions. Concern for Northallerton’s fate meant that he took a particular interest in proceedings on the 1867 reform bill, and he naturally divided against the disenfranchisement of boroughs with a population of less than 5,000, 3 June 1867. That month he wrote to the Conservative chief whip, Colonel Taylor, to urge that Northallerton be extended to include surrounding villages, but that Bedale, where the rival Peirse interest held sway, remain outside the borough. (In the event, the boundary commissioners recommended no alteration in the boundaries.)
Lascelles did not seek re-election in 1868, returning with enthusiasm to his sporting pursuits, notably horse racing – he served as steward at both the York and Richmond races
