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Sept 23 (Reuters) - European shares started Monday on a

subdued note as investors maintained a cautious stance ahead of

a slew of key economic data from the region through the week.

The pan-European STOXX 600 index held its ground at

514.43, as of 0710 GMT.

Euro zone's flash PMI data for September is set to drop at

0800 GMT, while Germany's and Britain's flash PMI figures are

due at 0730 GMT.

France's flash PMI figures for September are expected at

0715 GMT.

Board members from the European Central Bank are set to

speak through the week, with Frank Elderson and Piero Cipollone

speaking later in the day.

Among individual stock moves, TotalEnergies gained

about 1% after the oil giant said it will supply up to 1.5

million tons of more sustainable aviation fuel to Air France-KLM

.

Shares of Germany's Commerzbank fell 4.4% as the

government said it would retain its 12% stake in the lender,

that will likely keep any merger with Italy's UniCredit

on hold.

AstraZeneca ( AZN ) dropped 1% after its experimental

precision drug developed with Daiichi Sankyo ( DSKYF ) did not

significantly improve overall survival for patients with a type

of breast cancer in a late-stage trial.